Pipeline protection device for water conservancy project

The utility model relates to the technical field of hydraulic engineering, and discloses a hydraulic engineering pipeline protection device which comprises a protection device body, sealing equipment is arranged at the top end of the protection device body and comprises a stabilizing disc, a clamping disc and a self-adaptive assembly, and the self-adaptive assembly is connected between the inner ring of the stabilizing disc and the outer ring of the clamping disc. A connecting plate is arranged at the bottom end of the self-adaptive assembly, an adjusting spring is installed on the face, close to the clamping disc, of the connecting plate, a base is connected to the bottom of the sealing equipment and comprises a supporting rod, a telescopic rod, a base, a sliding block and a pull rod, and the supporting rod is located between the top of the telescopic rod and the bottom of the stabilizing disc. The stabilizing disc and the clamping disc are connected in a non-fixed mode, the clamping disc can be connected to