The invention discloses a dual-source heat-pump water heater. The dual-source heat-pump water heater comprises an air-side evaporator, a water-side evaporator, a hot-water-side condenser, a first solenoid valve and a second solenoid valve, a first one-way valve, a second one-way valve and a third one-way valve, a four-way reversing valve, a compressor and a gas-liquid separator. As the air-side evaporator is paralleled with the water-side evaporator, the respective processes of the functions of supplying hot water, or supplying hot water and cool water are realized through switching of the solenoid valve and guiding of the one-way valve, and the phenomenon of fluorine accumulation is avoided.