Spray extension tube gun

The utility model proposes a spray extension tube gun, comprising a gun body extension tube, wherein two ends of the extension tube are respectively connected with a connector and an elbow; and the other end of the elbow is connected with a taper nozzle. The spray extension tube gun can be matched with various gas fire extinguishing systems, and can effectively put out fires in the places such as ships and warships, aircraft cabins, airports, aircraft engines, ships, wharfs and high and narrow limited spaces. By utilizing drug jet from the spray extension tube gun, the spray extension tube gun is suitable for putting out initial fires of combustible and flammable liquid and gas and electrified equipment, and rescuing precision instruments, precious materials, valuable cultural relics and the like. The jet nozzle is extended and lengthened to the maximal extent under the premise that the spray guns of a traditional fire extinguishing system or fire extinguishing equipment do not affect original use, so that th