River desilting boat

The utility model relates to a river desilting boat, which comprises a boat body, a delivery water pipe, fixed water spray pipes, movable water spray pipes and a lifting machine, wherein the fixed water spray pipes are fixedly connected with the delivery water pipes, and the movable water spray pipes are installed on two sides of the fixed water spray pipe and are movably connected with the fixed water spray pipes. The river desilting boat is characterized in that the end portions of the fixed water spray pipes and the movable water spray pipes on two sides are closed, one ends of the movable water spray pipes are hinged with two ends of the fixed water spray pipes, a shunting flexible pipe is arranged on the delivery water pipe, one end of the shunting flexible pipe is communicated with the delivery water pipe, the other end is communicated with the movable water spray pipes, since the fixed water spray pipes and the movable water spray pipes on two sides are changed from communication into mutual closing, s