High-pressure water mist pipe piece

The invention discloses a high-pressure water mist pipe piece, which can be a straight-through piece, an elbow, a four-way piece, a three-way piece, a variable-diameter straight-through piece, a variable-diameter elbow, a variable-diameter four-way piece and a variable-diameter three-way piece, wherein the connecting part on the pipe piece is provided with three grooves; and one groove at the middle part is provided with a sealing ring. The high-pressure water mist pipe piece disclosed by the invention has the beneficial effects that the deformation of an annularly pressed steel pipe can be fuller, high pressure for conveying medium can be born, and the high-pressure water mist pipe piece can conveniently enter a construction site for use only by needing to do little modification to the existing annularly-pressed tool; and the high-pressure water mist pipe piece disclosed by the invention has the advantages of high connecting accuracy, reliable connection and convenience in construction.