Simple waste gas purification device for factory environmental protection

The utility model relates to the technical field of waste gas purification, in particular to a simple factory environment-friendly waste gas purification device which comprises a machine shell, a treatment box is arranged at the top end of the machine shell, a multi-stage filter screen is arranged on the left side of an inner cavity of the treatment box, and a plurality of baffles are arranged in the middle of the inner cavity of the treatment box. A plurality of through holes are formed in the top end of an inner cavity of the treatment box in a vertically mixed and matched mode, a plurality of spray heads are arranged at the top end of the inner cavity of the treatment box, a mixing box is arranged at the top end of the treatment box, a mixing assembly is arranged in an inner cavity of the mixing box, and wheels are arranged at the four corners of the bottom end of the machine shell. A lifting assembly is arranged in an inner cavity of the machine shell, and a supporting plate is arranged at the bottom end