Air purification device of precision casting preparation workshop

The invention discloses an air purification device for a precision casting preparation workshop, and relates to the technical field of air purification, the air purification device comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a water tank and a filter tank in sequence from left to right, and the top of the water tank is fixedly connected with a dust removal cylinder. According to the air purification device for the precision casting preparation workshop, two second bevel gears are in meshing transmission through a first bevel gear, then a first rotating shaft, a first filter plate, a second rotating shaft and a second filter plate rotate, and the first filter plate and the second filter plate make contact with water at the bottom of the inner wall of a dust removal cylinder in the rotating process; then water in the dust removal cylinder can clean dust attached to the first filter plate and the second filter plate, meanwhile, two first spray heads spray water to flush the first filter plate and the second filter plate, and therefore the first filter plate and the second filter plate are cleaned in time, and the problem that the first filter plate and the second filter plate are blocked by the dust is avoided; therefore, the air filtering effect of the filter plate I and the filter plate II is ensured.