Water conservancy pipeline butt joint device

The utility model relates to the technical field of pipeline butt joint, in particular to a water conservancy pipeline butt joint device which comprises two limiting mechanisms and a connecting mechanism, and the two limiting mechanisms are connected through the connecting mechanism. The limiting mechanism is composed of a moving mechanism and a fixing mechanism, the first screw is rotationally connected with the inner wall of the moving seat, the outer wall of the first screw is sleeved with a T-shaped seat in a threaded mode, and the top end of the T-shaped seat extends out of the moving seat to be connected with the fixing mechanism. The fixing mechanism comprises a lower arc-shaped seat and an upper arc-shaped seat, and one end of the lower arc-shaped seat is hinged to one end of the upper arc-shaped seat; an installation notch is formed in one side of the installation base, a vertical rod is rotationally connected into the installation notch, the top end of the vertical rod extends into an inner cavity o