Boiler flue gas treater

The utility model provides a boiler flue gas treatment device, relates to the technical field of boiler auxiliary equipment of a thermal power plant, and solves the problems that part of existing boiler flue gas treatment equipment is poor in flue gas treatment effect, and filtering equipment cannot be replaced and cleaned in the use process of the flue gas treatment equipment. A hollow cavity is formed in the main body, an ash outlet pipe is arranged on one side of the bottom of the hollow cavity of the main body, and a smoke outlet hole is formed in the top of the main body; a fixing ring is fixedly connected to the main body, and a sliding groove is formed in the fixing ring; a motor rotates to drive a gear shaft to rotate, then a cleaning block fixedly connected to a rotating ring is driven to discharge impurities at the bottom of a main body from an ash discharging pipe, and a synchronous belt is further connected to the gear shaft in a meshed mode, so that a gear rod at the top of a linkage shaft drives