Air energy unit for cigar tobacco airing room

A partition plate divides the inner space of a closed box shell into a lower box chamber and an upper box chamber, a ventilation opening for communicating the lower box chamber with the upper box chamber is formed in the partition plate, a heating exchanger horizontally covers and is fixed to the position, on the ventilation opening, in the upper box chamber, and a hot water storage tank and a cold water storage tank are arranged outside the closed box shell; a snail exhaust fan is arranged at the position, located above the heating exchanger, in the upper box chamber, an air supply outlet communicated with an exhaust outlet of the snail exhaust fan is correspondingly formed in the box wall of the upper box chamber, and a refrigeration exchanger is vertically installed in the lower box chamber. The cold water storage tank is communicated with the refrigeration exchanger to conduct cold water circulation flow, a plate-fin heat regenerator is arranged between the ventilation opening and the refrigeration exchan