Middle-deep geothermal energy heat exchange device

The utility model relates to the field of heat exchange devices, in particular to a medium-deep geothermal energy heat exchange device which comprises a machine base and a heat extraction assembly arranged on the machine base, the heat extraction assembly comprises a heat extraction pipe arranged on the machine base and a heat extraction pump arranged on the heat extraction pipe, one end of the heat extraction pipe extends into the ground, and the medium-deep geothermal energy heat exchange device further comprises a heat exchange box. The heat exchange box is arranged on one side of the machine base, the other ends of the heat extraction pipes are communicated with the heat exchange box, a discharge outlet is formed in the side, away from the heat extraction pipes, of the heat exchange box, a plurality of heat exchange pipes are arranged in the heat exchange box, and a water inlet and a water outlet are formed in the two opposite sides of the heat exchange box. The two ends of the heat exchange pipe communic