Underground water collector

The utility model discloses an underground water collector, which belongs to the field of water sample collection and comprises two triangular supports, winding frames are fixedly connected to the upper ends of the triangular supports, a winding roll shaft is rotatably connected between the two winding frames, and a connecting cable is wound at the outer end of the winding roll shaft. A rotatable damping inner shaft is rotatably connected between the two limiting ring frames, the upper end of the rotatable damping inner shaft is fixedly connected with a bottom scraping strip, the upper ends of the limiting ring frames are fixedly connected with side vertical sliding rods, and an upper scraping strip is slidably connected between the two side vertical sliding rods. The upper outer wall and the lower outer wall are in contact with the bottom scraping strip and the upper scraping strip respectively, so that water, moss and other substances outside the connecting cable can be scraped, the subsequent scale observa