High-pressure water cutting device

The utility model discloses a high-pressure water cutting device which comprises a first fixing ring, a second fixing ring is arranged at the lower end of the first fixing ring, a pipeline to be cut is arranged between the first fixing ring and the second fixing ring, and a cutting mechanism is arranged between the first fixing ring and the second fixing ring. The cutting mechanism comprises sliding grooves, movable plates, mounting seats, motors, gears, clamping teeth and high-pressure spray heads, the sliding grooves are formed in the outer side surfaces of the first fixing ring and the second fixing ring, the movable plates are movably clamped in the sliding grooves through sliding blocks, and the mounting seats are fixedly arranged on the two sides of the surfaces of the first fixing ring and the second fixing ring. And a motor is fixedly arranged on the outer side surface of the mounting seat. The pipeline cutting device is good in using effect, the high-pressure spray head can be conveniently driven to