Descaling device for geothermal well

The invention relates to the field of geothermal wells, and discloses a descaling device for a geothermal well, which effectively solves the problem that the descaling effect is poor due to the fact that scale bodies are removed only through moving friction of descaling blocks at present, and comprises the geothermal well, a mounting plate is arranged above the geothermal well, and supporting columns are mounted at the bottom end of the mounting plate at equal angles. A supporting frame is installed at the bottom end of the supporting column, a supporting groove is formed in the bottom end of the supporting frame and clamped on the well edge of the geothermal well, and a pressing screw rod is in threaded connection with the side, away from the geothermal well, of the supporting frame. And the scraping sleeve plate is pushed to move outwards along the side square pipe, so that one end of the scraping sleeve plate is tightly attached to the inner wall of the geothermal well, the inner wall of the geothermal wel