Injection nozzle and injection device including injection nozzle

An injection device comprising:

• an injection nozzle in which a rotating body housing portion is provided in an outer cover, a rotating body is provided in the rotating body housing portion, a rotating body protruding portion is provided in the rotating body, a distal end portion of the rotating body protruding portion protrudes outward through an opening portion provided in the outer cover, a liquid discharge pipe is provided inside the rotating body, and a distal end portion of the liquid discharge pipe is inserted into an insertion hole of the rotating body protruding portion;
• a compressed gas supply unit configured to introduce a compressed gas from a compressed gas supply source into the rotating body housing portion of the injection nozzle;
• and
• a liquid supply unit configured to feed a liquid to the liquid discharge pipe provided inside the rotating body in the injection nozzle.