Chain pipeline cutter

The utility model discloses a chain pipeline cutter, relates to the technical field of water cutting auxiliary equipment, and comprises a bottom plate, the lower wall surface of the bottom plate is rotatably connected with two pairs of wheels, the upper wall surface of the bottom plate is fixedly connected with a mounting frame, a pair of guide columns is fixedly connected in the mounting frame, and the pair of guide columns is slidably connected with a V-shaped lifting frame. An adjusting mechanism is arranged between the V-shaped lifting frame and the mounting frame, a guide tensioning wheel is mounted on the upper wall face of the V-shaped lifting frame, a chain is mounted on the guide tensioning wheel, a power box is fixedly connected to the upper wall face of the bottom and located behind the mounting frame, an output shaft is rotationally connected to the power box, a driving chain wheel is fixedly connected to the output shaft, and the driving chain wheel drives the V-shaped lifting frame to rotate. Th