Cutting device for petroleum pipe machining

The invention belongs to the technical field of petroleum pipe machining, and particularly relates to a petroleum pipe machining cutting device which comprises a base, four supporting columns are symmetrically fixed to the top of the base, a box is fixed to the tops of the four supporting columns, and through openings allowing a to-be-cut oil pipe to penetrate through are formed in the two side walls of the box. A clamping assembly used for clamping an oil pipe to be cut is arranged in the box body, and a U-shaped plate is fixed to the top of the box body. According to the cutting device, a to-be-cut oil pipe can be clamped and fixed by arranging the clamping assembly, and water can be sprayed to a cutting part when the oil pipe is cut by arranging the housing and the water spraying assembly, so that dust generated during cutting can be prevented from diffusing into air, and the body health of workers is facilitated; and by arranging a water receiving tank, a filtering assembly, a second water pump, a water i