Low-nitrogen burner with flue gas purification function

The utility model belongs to the technical field of low-nitrogen combustors, and particularly relates to a low-nitrogen combustor with a flue gas purification function, which comprises a combustor body, and a blast end is arranged on the surface of the combustor body. According to the low-nitrogen combustion engine with the flue gas purification function, air entering the blast end of the surface of the combustion engine body is purified by arranging the filtering device, and air entering the air inlet pipe is filtered through a filtering net and a filtering element in the filtering device; the first fixing frame and the second fixing frame are kept fixed under the action of the inserting rods and the check blocks, so that after dust is accumulated on the surface of the filter screen in the first fixing frame, the acting force of the air blowing end on the surface of the first fixing frame is increased, and then the first fixing frame deflects and extrudes and ascends the inserting rods; and the airflow cross