Fan structure of fuel cell

A fan structure of a fuel cell comprises a fan with an air inlet and further comprises an air filter box, the air filter box comprises a box body fixed to the fan and a filter screen cover detachably fixed to the outer side of the box body, a filter element layer is arranged on the filter screen cover, and the filter element layer is arranged on the filter screen cover. The air inlet is located in an inner cavity formed between the box body and the filter screen cover, the air filter box is additionally provided with a structural part, so that the cavity space of the air inlet is enlarged, the large-area filter screen cover is adopted, the filter core layer is arranged on the filter screen cover, the air filtering effect can be achieved, the air inlet amount can be met, and the air filter box is convenient to use. And the performance parameters of the fan cannot be influenced by changing the structure of the fan. Impurities in air are effectively prevented from entering the fuel cell, air passage blockage is