Assembled multifunctional irrigation device for water conservancy project

The utility model provides an assembly type multifunctional irrigation device for a water conservancy project. The assembly type multifunctional irrigation device comprises a straight water channel, a drain valve and a connector. Drain valves are arranged on the two sides of the straight water channel, and the straight water channel is fixedly connected with the drain valves in a welding mode; the connectors are located at the left ends of the straight water channel and the bent water channel correspondingly, and the connectors, the straight water channel and the bent water channel are of an integrated structure correspondingly. The clamping blocks are located on the two sides of the connector, and the clamping blocks and the connector are of an integrated structure. The clamping grooves are located in the inner walls of the two sides of the right ends of the straight water channel and the bent water channel correspondingly, and the clamping grooves, the straight water channel and the bent water channel are o