Soot blower

The utility model discloses a soot blower, which belongs to the technical field of air preheaters, and comprises a gun head and a gun barrel inserted at the front end of the gun head, the gun barrel is provided with three spray heads, each spray head is provided with three insertion holes, nozzles are arranged in the insertion holes, one end of each nozzle, which is positioned in the corresponding insertion hole, is integrally connected with a communicating pipe, and the communicating pipe is communicated with the gun head. The tail end of the communicating pipe is sleeved with a hose, the center of the rear end of the spray head is connected with a first three-way pipe, and the end of the first three-way pipe is connected with the hose. An original air pre-heater steam soot blower is modified, each soot blowing gun barrel is provided with three groups of spray heads, each group of spray heads is provided with three nozzles, and the three nozzles form an included angle of 120 degrees, so that the steam soot b