Portable rock core sampling drill

The utility model discloses a portable rock core sampling drill. A clutch and a speed change gear box are connected below an engine; an operation handle is arranged on the lower side of the speed change gear box; a water supply device is connected below the speed change gear box; a cooling device is connected with a water tank through a water tube; a connecting buckle is arranged below the cooling device; a splicing joint or a screw thread connecting joint is connected to a drill rod; the joint is clamped on the connecting buckle through rotation, a rock core tube is connected below the drill rod; the lower end of the rock core tube is further connected with a drill bit. The portable rock core sampling drill has the characteristics of light weight, convenience in carrying, high drilling efficiency and the like, does not damage vegetation and the environment, does not require road repair, and is very suitable for use in field geological exploration; the portable rock core sampling drill is convenient to operat