Downhole power drilling tool with de-jamming device

The invention relates to a downhole power drilling tool with a de-jamming device, and belongs to the technical field of power drilling tools. The downhole power drilling tool comprises a power drilling tool and the de-jamming device. The power drilling tool comprises a shell and a shaft rod. The shell is of a hollow tubular structure. The shaft rod is located in the shell and can rotate in the shell. The de-hamming device is located in the shell and is used for connecting the shell with the shaft rod in a triggered state so as to enable the shaft rod to synchronously rotate along with the shell. According to the downhole power drilling tool, in normal drilling operation, the de-jamming device does not participate in work, and when de-jamming operation is needed, after drilling fluid pump pressure is improved, the de-jamming device automatically connects the shaft rod and the shell into a whole for rotation. The de-jamming device is located on the shaft rod in the shell, the structure is compact, the structura