The invention discloses an air circulation purification air conditioner, which comprises a program control display screen (1), a solenoid valve air door (2), a fan pipeline upper chamber (3), a suction-in fan (4), an exhaust fan (5), a fan pipeline lower chamber (6), a spray water chamber (7), a multi-hole sponge (8), an air-water separation mesh (9), backflow water (10), an air water curtain dedusting filter screen (11), a solenoid valve (12), a lamp base (13), silica gel (14), an ultraviolet lamp light tube (15) and the like. The air circulation purification air conditioner sucks outdoor air indoors through a 1-2 inch pipeline, then sucks in air through purified water circular cleaning and filtering, the air is sent into all rooms for use through a fan pipeline after the air is disinfected in an ultraviolet disinfection chamber, and therefore the quality of indoor air can reach the quality of field air in fine days after thunderstorm. In addition, PM 2.5-10 flying dust inhalable particles and the like are removed when the air is filtered and cleaned, so that the indoor air can be as clean as air in after-rain woodlands even when doors and windows are closed for a long time.