Suspended dangerous rock body protecting and retaining device

The utility model relates to a suspended dangerous rock body protecting and retaining device which is used for supporting a suspended dangerous rock body on a rock wall. Comprising a bottom plate, a fixing part used for fixing the bottom plate to the ground, and a supporting plate arranged above the bottom plate and used for supporting a suspended dangerous rock body. The at least two first supporting parts are arranged at the end, close to the rock wall, of the bottom plate; the at least two second supporting parts are arranged on the bottom plate and located on the sides, away from the rock wall, of the first supporting parts; the upper end of the first supporting part is hinged to the supporting plate, the upper end of the second supporting part is used for abutting against the lower side face of the supporting plate, and the first supporting part and the second supporting part are each of a telescopic structure capable of stretching out and drawing back in the vertical direction. Due to the adoption of th