Waste gas treatment equipment for heat treatment of piston prefabricated material

The utility model discloses piston prefabricated material heat treatment waste gas treatment equipment which comprises a main body mechanism, a gas purification mechanism and a spraying mechanism, the main body mechanism comprises a shell, supporting legs connected to the bottom end of the shell, an air inlet screen fixedly installed at the bottom of an inner cavity of the shell, a filter element fixed to the top end of the shell, a barrel fixedly installed at the bottom end of the filter element and a spiral plate spirally connected to the outer side of the barrel and the outer side of the filter element. According to the utility model, the cylindrical shell is arranged, and the barrel body and the spiral plate on the barrel body are arranged in the shell, so that airflow can be guided and spirally ascends along the spiral plate, the contact time and the contact area of waste gas and atomized water flow are increased, and particles and pollutants in the waste gas can be thoroughly removed; the filter element