High-pressure water jet cleaning spray gun

The invention discloses a high-pressure water jet cleaning spray gun. The high-pressure water jet cleaning spray gun comprises a spray rod. A spray gun pipeline is formed in the spray rod. The first end of the spray rod is connected with a spray nozzle. The spray nozzle communicates with the spray gun pipeline. A water gun connector is arranged on the spray rod. The water gun connector communicates with the spray gun pipeline. The second end of the spray rod is provided with a propelling device. The propelling device can generate propelling force towards one side of the spray nozzle. The high-pressure water jet cleaning spray gun has the advantages that under the condition that underwater cleaning personnel conduct cleaning operation at water jet pressure changing randomly, the rotation speed of the propelling device of the high-pressure water jet cleaning spray gun can be automatically adjusted so that the recoil force generated by the water jet can be rapidly eliminated; and in this way, the safety of the o