Pulverized coal fired boiler combustion system arrangement structure capable of reducing generation of nitric oxide

The utility model discloses a pulverized coal boiler combustion system arrangement structure capable of reducing generation of nitric oxide, and relates to the related technical field of pulverized coal boiler combustion. The device comprises a main combustion box body, air conveying openings, an electric push rod and a mixing cylinder, the lower portions of the four corners of the outer side of the main combustion box body are fixedly communicated with the air conveying openings respectively, the upper portion of the air conveying opening in the bottom of each main combustion box body is fixedly communicated with three air conveying openings, and the three air conveying openings in the corners of each main combustion box body correspond in position in the vertical direction. And the outer side of the main combustion box body among the three air conveying openings fixedly communicates with a mixing barrel, and an electric push rod is arranged on the outer portion of one side of each air conveying opening. Thr