Waste gas treatment and purification device

The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment and purification device which comprises a cooling treatment barrel, and a partition plate is fixedly connected to the middle section in the cooling treatment barrel. The cooling treatment device has the advantages that the cooling treatment barrel serves as a main body, the partition plate is fixedly connected to the middle section in the cooling treatment barrel, the upper portion and the lower portion in the cooling treatment barrel are divided into the clear water cavity and the reaction cavity, the air pipe is arranged in the clear water cavity and is spiral, and the multiple connecting pipes are fixedly connected to the top of the air pipe; during use, clear water and treating fluid are injected into the clear water cavity and the reaction cavity respectively, the clear water in the clear water cavity circularly flows, heat of waste gas can be transferred to the clear water, the clear water is