Heating boiler with exhaust pipeline having filtering function

The utility model discloses a heating boiler with an exhaust pipeline having a filtering function, and belongs to the technical field of exhaust pipelines. Comprising a boiler body, the boiler body comprises a pipeline body, an end cover is movably connected to the top end of the pipeline body, a through air outlet is formed in the middle of the end cover, a mounting groove is formed in the inner wall of the pipeline body and slidably connected with a filter cartridge, and an annular filter plate is arranged in the middle of the interior of the filter cartridge; the two ends of the rotating rod penetrate through the fixing columns respectively and are connected with connecting columns, brush plates are arranged on the two sides of the connecting columns respectively, bristles are arranged on the sides, away from the connecting columns, of the brush plates and the sides, close to the annular filter plate, of the brush plates respectively, and the bottom of the rotating rod penetrates through the connecting col