No you cannot as it might harm the fabric.
Avoid storing a tent in a small steel container
The question of whether you can wash a tent in the washing machine has a number of answers. Tents do not fit easily into washing machines and the spine can break in the process. This makes washing a tent in the washing machine a very impractical option. As a result, most professionals recommend that you wash a tent at most once or twice a year, or even never.
It is important to store your tent in a way that preserves its integrity. Unlike bivy bandits who are unlikely to cause damage to your tent, molds, bugs, and mice can cause serious damage if they can live inside. These vermin are attracted to the warmth, food, and moisture that your tent offers.
First, before storing your tent in a small steel container, make sure that the tent has been thoroughly cleaned. You should also make sure that it has been rolled up correctly. If the tent’s zippers are dirty, they will wear out sooner rather than later.
The next step in proper tent care is to dry it properly. After washing it, remember not to wring it. This can cause mold to form and can damage the waterproof coating. Once dry, store it in a breathable storage bag instead of a small steel container. If the tent is damp, you should deodorize it with borax or baking soda. Silica gel can also be used to dehumidify the space.
Avoid putting a tent in the washing machine
If you have a tent, do not put it in the washer. This can damage the fabric. Using a clothesline will be the best option for drying your tent. However, you must be careful not to leave it outside for days. The sun’s UV rays can harm the fabric and the tent may not withstand the heat.
The best way to avoid putting a tent in the washer is to clean it as often as you need to. This is especially true if you camp in dusty areas or are near water. You should also wash it if it starts to smell or has visible caked-on dirt.
Another way to wash a tent is by hand. This way, you can easily remove any dirt or debris from the fabric. You can then hose the tent off with a hose. When you’re done, it is a good idea to let it dry out before storing it.