Air-conditioner fan equipped with water shortage protecting device

The utility model provides an air-conditioner fan equipped with a water shortage protecting device. The air-conditioner fan comprises a case of the air-conditioner fan, a control circuit, a blower assembly and a water circulating device, wherein the control circuit, the blower assembly and the water circulating device are installed in the case. The water circulating device comprises a water tank, a water pump located in the water tank, and a water screen used for water evaporation and heat absorption. The water pump pumps water in the water tank into a water channel at the upper end of the water screen. The air-conditioner fan further comprises the water shortage protecting device. The water shortage protecting device comprises a floater, a transmission ejector rod and a microswitch. The floater is arranged over a water inlet hole in the bottom of an inner cavity of the water channel. One end of the transmission ejector rod is connected to the top of the floater, and the other end of the transmission ejector rod penetrates through a top cover of the water channel and points to a driving arm of the microswitch installed on the top cover. The microswitch is electrically connected to the control switch. The air-conditioner fan has the advantages that the structure is simple, the water shortage protecting and warning performance is more reliable, and the occurrence rate of false alarms is reduced.