The utility model provides a multi-mode heat pump air conditioning device. Vapor-liquid separator, the air outlet end of the vapor-liquid separator communicates with the air inlet end of the compressor, and the air outlet end of the compressor communicates with the D end of the four-way valve. the air outlet end of the four-way valve is connected with the electronic expansion valve and the outdoorheat exchanger through the cold-hot heat exchanger; a first electromagnetic valve, a second electromagnetic valve, an efficient heat exchanger, a hot water tank and a hot water pump are further included. the second electromagnetic valve is connected between the air outlet end of the compressor and the D end of the four-way valve; the first end of the first electromagnetic valve is connected withthe air outlet end of the compressor; the second end of the first electromagnetic valve is connected with the refrigerant inlet end of the efficient heat exchanger, the hot water side of the efficientheat exchanger is connected with the hot water tank, the hot water pump is connected between the hot water port of the efficient heat exchanger and the hot water tank, and the refrigerant outlet endof the efficient heat exchanger is connected with the D end of the four-way valve. The environment-friendly garbage can has multiple working modes, is environment-friendly, and is convenient for usersto use.