Middle-deep layer geothermal underground heat removal device

The invention discloses a middle-deep layer geothermal underground heat removal device, which relates to the technical field of geothermal exploitation, and comprises a connecting pipe and an exhaust passage, and further comprises a sealing block, a first heat exchange pipe, a second heat exchange pipe, a first heat exchange pipe, a second heat exchange pipe and a second heat exchange pipe, and the sealing block is arranged in the exhaust passage and is provided with a first position for closing the exhaust passage and a second position for opening the exhaust passage; the turbine is rotationally connected into the connecting pipe and used for detecting the water flow; the transmission mechanism is arranged on the turbine and is connected with the sealing block; and when the rotating speed of the turbine is smaller than the preset value, the transmission assembly drives the sealing block to move to the second position where the exhaust channel is opened so that gas in the connecting pipe can be exhausted. Acc