Two-loop hydraulic-fracturing geostress-testing device for wire-line coring drill rod

The utility model discloses a two-loop hydraulic-fracturing geostress-testing device for a wire-line coring drill rod. The bottom end of the wire-line coring drill rod is provided with a sealing apparatus which is installed in a drill hole. The wire-line coring drill rod is fixed in the drill hole through a drill rod clamping seat. The bottom end of the wire-line coring drill rod is in threaded connection with a variable joint. An upper sealing apparatus is connected to the variable joint. A high-pressure inlet outside the drill hole is connected to a high-pressure soft pipe which penetrates into a pipe clamp and a clamping ring arranged in a specific drill rod joint. Through the specific drill rod joint and a clamping device, the high-pressure soft pipe is enabled to obtain the suspending support in the wire-line coring drill rod. At the bottom, the drill rod is connected with the variable joint. The high-pressure soft pipe is connected with the variable joint, and then a fine high-pressure soft pipe is conn