The invention relates to the technical field of
sewage purification, and discloses a
water quality purification pretreatment pipeline capable of preventing blockage and automatically dredging. The pipeline comprises a
water pipe, a filter screen is fixedly mounted in the
water pipe, a spring is fixedly mounted at the right end of the filter screen, and a flow limiting block is fixedly mounted at the right end of the spring. An
electrode plate is fixedly installed at the left end of the flow limiting block, rolling wheels are fixedly installed at the top end of the inner wall of the
water pipe,a buffer
pipe is fixedly installed at the lower end of the water
pipe, a baffle is movably installed at the top end of the buffer
pipe, and a screw rod is rotationally installed on the right side ofthe bottom end of the buffer pipe. According to the
water quality purification pretreatment pipeline capable of preventing blockage and achieving automatic dredging, when the
sewage pipeline is blocked, the filter screen is automatically decontaminated, the situation that transportation is affected due to water pipe blockage caused by
impurity accumulation is prevented, when too many impurities are accumulated, the groove plate is opened to
discharge the impurities in a unified mode, later
sewage purification is facilitated, and the sewage conveying efficiency is higher.