Waste incineration flue gas treatment device

The utility model relates to the technical field of waste incineration, in particular to a waste incineration flue gas treatment device which comprises a bearing platform, a filter box arranged on the bearing platform, a gas inlet pipe arranged on the filter box, a gas outlet pipe arranged at the bottom end of the filter box, a gas conveying pipe arranged at one end of the gas inlet pipe, an exhaust pipe arranged at one end of the gas outlet pipe and a through hole formed in the side face of the filter box. A frame body is inserted into the inner wall of the through hole, a fixing mechanism is arranged in the frame body, and a filter screen is arranged on the inner wall of the frame body. According to the waste incineration flue gas treatment device, the purpose of fixing the frame body into the through hole is achieved through the arrangement of the fixing mechanism, the frame body is convenient to mount and dismount, the filter screen is convenient to clean, the two filter boxes are arranged, alternate filt