The invention discloses a household integrated multi-functional air source heat pump type air conditioning unit, comprising a box body and further comprising a compressor, a one-way valve, a four-way reversing valve, a liquid storage cylinder, a thermostatic expansion valve, a fin heat exchanger, a blower, a bidirectional drying filter, a plate heat exchanger, an air condition water circulating pump, a gas-liquid separator and the like, which are mounted in the box body. The household integrated multi-functional air source heat pump type air conditioning unit further comprises a hot water generating device consisting of a loading water tank and a spiral pipe arranged in the loading water tank, wherein an outlet of the spiral pipe is connected with a port a of the four-way reversing valve through the one-way valve, and the other end of the spiral pipe is connected with an air outlet of the compressor; and a solenoid valve is connected between the port a of the four-way reversing valve and the air outlet of the compressor, and the loading water tank is arranged in the box body. On one hand, the purposes of energy conservation and consumption reduction are achieved by using waste heat, and the heat pollution to an environment, caused by machine operation, is avoided; and on the other hand, all components are mounted in the box body due to a design of an integral structure, so that the occupied area is small and the installation is convenient.