Waste gas treatment device for chemical reaction kettle

The utility model belongs to the technical field of waste gas treatment, and particularly relates to a waste gas treatment device for a chemical reaction kettle, which comprises a filtering tank and a tank cover, the tank cover is movably mounted at the top of the filtering tank through bolts, the bottom of the side wall of the filtering tank is communicated and connected with a gas inlet pipe, the gas inlet pipe is of a Z-shaped structure, and the side wall of the tank cover is communicated and connected with an exhaust pipe. An exhaust disc is arranged at the bottom of an inner cavity of the filtering tank, the exhaust disc is connected with the end part of the air inlet pipe, a filtering material is arranged in the inner cavity of the filtering tank, and the filtering material is positioned above the exhaust disc; spraying liquid can be evenly sprayed to the surface of a filter material through the spraying disc, meanwhile, the driving motor drives the stirring paddle, the bottom of the stirring paddle is