The utility model belongs to the technical field of ground source heat pumps, and particularly relates to a ground source
heat pump sewage purification device which comprises a
heat pump body and a purification device shell, the purification device shell is installed in the
heat pump body, and a filtering and
impurity removing mechanism is arranged in the purification device shell. The filtering and
impurity removing mechanism comprises a water inlet
pipe, one end of the water inlet
pipe communicates with the bottom of the purifying device shell, and the other end of the water inlet
pipe penetrates to the rear side of the heat pump body. One end of the water outlet pipe communicates with one side of the purification device shell, and the other end of the water outlet pipe penetrates to the outer side of the heat pump body. The utility model provides a
sewage purification device of a ground source heat pump, which can automatically clean impurities filtered and accumulated on a filter screen, ensure that the filter screen is always in an optimal working state, effectively prevent the filter screen from being blocked, maintain the filtering efficiency, ensure the
water quality to be clean, and prolong the service life of a heat pump
system and other key components.