Air energy water heater with high heat exchange efficiency

The utility model discloses an air energy water heater with high heat exchange efficiency, and belongs to the technical field of air energy water heater devices. The air energy water heater comprisesa water storage barrel and a heat pump, and a liquid inlet and a liquid outlet of the heat pump are both communicated with the water storage barrel; the water storage barrel comprises an outer shell and an inner shell, a heat preservation layer is arranged between the outer shell and the inner shell, a cold water inlet is formed in the upper portion of the side wall of the water storage barrel, and a hot water outlet and a water outlet are formed in the lower portion of the side wall of the water storage barrel. At least two sleeves are arranged in the water storage barrel, the sleeves are fixed to the side wall of the inner shell through a fixing frame, the sleeves are located on the lower portion of the water storage barrel and located above the hot water outlet, water inlets of the sleeves are communicated with