Air purification device of clean room

The utility model discloses an air purification device of a clean room, which comprises a shell, air inlets are arranged on two sides of the lower end of the shell, suction fans are arranged at the air inlets, air outlets are arranged on two sides of the upper end of the shell, a case is fixedly arranged on the back of the shell, and a top cover is fixedly arranged at the upper end of the shell through bolts. The top cover is fixedly installed on the shell, the water storage tank is fixedly installed at the upper end of the top cover, the water storage tank comprises a water pump and a water storage cavity, and a plurality of groups of water sprayers are fixedly installed at the lower end of the top cover. During use, external air is sucked into the shell through the suction fan at the air inlet, is filtered and purified through the filter plate and then is exhausted out of the shell through the air outlet; when the filter plate is used for a long time and needs to be cleaned, a user can start a water pump, t