Comprehensive treatment device for dust-containing waste gas

The utility model belongs to the technical field of waste gas treatment, and particularly relates to a comprehensive treatment device for dust-containing waste gas, which comprises a treatment box, a box cover is arranged at the top of the treatment box, a first groove, a second groove and a third groove are respectively formed in the treatment box, a first dust filter plate is arranged in the third groove, and a second dust filter plate is arranged in the second groove. And a second dust filtering plate is arranged in the first groove. And finally, water is sprayed out through a spray head, so that water-soluble substances in the air are filtered out, water in a second baffle is sucked out through a water absorption cotton column, a filter cotton plate is humidified through the absorption characteristic of the cotton column, the humidified filter cotton plate can better filter the air, the treatment effect is improved, and the treatment effect is improved. And finally, the waste gas is filtered again through