The invention relates to an air-cooled heat pump water cooler set, in which is disposed a water sprayer made up of a magnetic valve, a water filter, a water atomizer and a spray-transfer device connected in order. The spray-transfer device is used as the outlet of the system and the magnetic valve is used as the inlet of the system. Outside the casing is disposed a moisture-temperature sensor connected with a electric control system. The inventive water sprayer can act for reducing the air intake temperature on the condenser side can be reduced by the spray evaporation to increase heat-exchange temperature difference between the condenser and the air, so as to improve the heat-exchange environment and effect of the condenser side.