Anti-blocking mud conveying pipeline

The utility model utility discloses an anti-blocking mud conveying pipeline. Comprising a pipe body, a fixed sleeve annularly arranged along the inner wall of the pipe body, a movable sleeve connected with the fixed sleeve in a sliding mode through a rotating part, a first supporting arm arranged along the inner wall of the movable sleeve, a second supporting arm connected with the first supporting arm in a sealed mode to form a cavity, and a connecting column arranged in the center of the second supporting arm. The upper separation blade and the lower separation blade are connected with the connecting column and the second supporting arm, and the projections of the upper separation blade and the lower separation blade in the axial direction of the connecting column are distributed in a staggered mode. According to the utility model, massive sludge conveyed in the pipeline can be decomposed into small blocks, so that the probability that the pipeline is blocked by the sludge when the pipeline is used is great