Water injection well hydraulic impact plug removal device

The utility model discloses a water injection well hydraulic impact unblocking device which comprises a lower inner cylinder in threaded connection with an upper inner cylinder, a sealing ring is embedded in the top end, facing the upper inner cylinder, of the lower inner cylinder, the sealing ring is tightly attached to the upper inner cylinder, a plurality of locking grooves are formed in the outer wall of the top end of the lower inner cylinder, a locking mechanism is installed at the bottom end of the upper inner cylinder, and the locking mechanism is connected with the upper inner cylinder. The locking mechanism is matched with the locking groove; the bottom end of the locking block can be inserted into the corresponding locking groove under the locking state through the matching of the locking mechanism and the locking groove, so that the upper inner cylinder and the lower inner cylinder cannot rotate relatively, the stability of threaded connection of the upper inner cylinder and the lower inner cylind