Air purification device for preventing secondary air pollution

The utility model relates to the technical field of air purification devices, in particular to an air purification device capable of preventing secondary air pollution, and adopts the technical scheme that the air purification device comprises a base, a shell, a handle, movable plates, hinges, fixed plates, insertion holes, a fixed frame, a powerful fan body, a retainer, a fixed groove and a filter element, the bottom of each fixed plate is rotatably provided with a movable plate through two hinges, the top of the shell on the opposite sides of the two fixed plates is provided with an insertion hole, the holder is inserted into the shell from the insertion hole, the filter element is embedded in the holder, and the powerful fan body is installed in the shell on one side of the holder. The air filter has the advantages that after filtering is finished, the two sides of the shell can be automatically closed, and filtered air enters the shell and is secondarily polluted by the filter element used in the shell. 本