Dust removal mechanism applied to air heater outdoor unit

The utility model belongs to the technical field of household air heaters, and particularly relates to a dust removal mechanism applied to an outdoor unit of an air heater. Wherein the water tank is arranged on an outdoor unit and used for collecting condensate water, the spraying pipe is arranged on the outdoor unit, one end of the spraying pipe extends to the water tank, the other end of the spraying pipe is provided with a spraying head located on an evaporator of the outdoor unit, and the spraying pipe is further provided with a water pump. Condensed water generated in the working processis collected by additionally arranging the water tank; condensed water in the water tank is pumped to a spray header at the upper end through a water pump and a spray pipe; the automatic dust removaldevice is simple in structure and remarkable in effect, the problem that an outdoor unit is difficult to clean manually is solved, and therefore the evaporator can keep good working performance. 本实用新型属于家用热风机的技术领域，尤其涉及应用于热风机室外机