Geotherm cooling device

The invention relates to an indoor comfort system, in particular to a geotherm cooling device. A geotherm deep well pump is arranged between a geotherm well and a plate heat exchanger. A cooler is connected with the plate heat exchanger, an air conditioner and a cooling tower. A hot water circulating pump is arranged between the cooler and the plate heat exchanger. A cold water circulating pump is arranged between the cooler and the cooling tower. A freezing water circulating pump is arranged between the cooler and the air conditioner. Geotherm has a system cooling effect in summer, cooling is even, indoor air quality is good, accordingly, when a room is exposed under scorching sun, people can feel cool in summer without the air conditioner being used, noise is low, using cost is low, and electricity resources can be saved.