Pipeline fixing device with angle adjusting mechanism for water conservancy project

The invention relates to the technical field of pipeline fixing, in particular to a water conservancy project pipeline fixing device with an angle adjusting mechanism, which comprises an outer frame, cross-shaped grooves are formed in two sides of the outer frame, cross-shaped plates are slidably mounted in the cross-shaped grooves, and an inner frame is fixedly mounted between the cross-shaped plates on two sides; the position of a fixed pipeline below is adjusted left and right by adjusting the position of an inner frame, lifting frames on the two sides are close to or far away from each other so as to drive supporting boxes on the two sides to adjust the distance between the supporting boxes, and therefore water conservancy project pipelines with different lengths can be evenly supported and placed, a limiting rod on one side is moved out of the lifting frames, and the limiting rods on the other side are moved out of the lifting frames. The limiting rod is moved out of the lifting frame and separated from