Hydraulic engineering pipeline protection device

The utility model discloses a hydraulic engineering pipeline protection device, which relates to the technical field of pipeline protection, and comprises a pipeline main body, a protection mechanism is arranged outside the pipeline main body, the protection mechanism comprises a first protection plate and a second protection plate, and the inner walls of the first protection plate and the second protection plate are fixedly connected with elastic sleeves. And adjusting mechanisms are arranged on the inner sides of the first protective plate and the second protective plate. Through the cooperation of the elastic sleeve, the groove, the limiting groove, the fixing rod, the limiting plate and the compression spring, the elastic sleeve increases the clamping area of the first protection plate and the second protection plate, the first protection plate and the second protection plate are pulled to enable the fixing rod in the groove to drive the limiting plate to move in the middle of the limiting groove, and thr