Large pipeline rolling device

The utility model provides a large pipeline rolling device which comprises a hoisting mechanism, a plurality of auxiliary mechanisms arranged side by side and a supporting mechanism, the hoisting mechanism is arranged in a pipeline and makes contact with the topmost end of the inner wall of the pipeline, the hoisting mechanism is parallel to the central axis direction of the pipeline, and the length of the hoisting mechanism is larger than that of the pipeline. The auxiliary mechanism is arranged on the upper end face of the supporting mechanism and located on one side in the pipeline rollingoutlet direction, and the side face, close to the pipeline, of the auxiliary mechanism is matched with the outer wall of the pipeline; the supporting mechanism and the bed rolling machine are arrangedon the horizontal ground side by side. The rolling device designed by the utility model is particularly suitable for rolling a large-diameter pipeline, is simple in structure, easy to operate and high in universality, effecti