Seepage-proofing and water-stopping structure used in water conservancy and hydropower engineering

The utility model relates to the technical field of water conservancy projects, and discloses an anti-seepage water stop structure used in water conservancy and hydropower engineering, which comprises an interception dam, a lifting device is arranged in the interception dam, and a discharge assembly is arranged in the interception dam; the lifting assembly comprises a rotating rod, the rotating rod is rotationally embedded in the intercepting dam, a first gear is fixedly mounted on the outer surface of the rotating rod, a second gear is meshed with the outer surface of the first gear, and the second gear is rotationally embedded in the intercepting dam; a waterproof plate is fixedly mounted on the inner wall, close to the bottom, of the intercepting dam, a lifting rod is rotationally embedded in the top of the outer surface of the waterproof plate, and the bottom of the outer surface of the lifting rod is fixedly connected with a rotating rod; the problems that when an existing device is used, the height of a