Sediment removal apparatus for float in river channel sludge and measuring method of float in river channel sludge

The invention relates to a sediment removal apparatus for float in river channel sludge. The sediment removal apparatus comprises a hull, sludge collectors, a sludge pump, a sedimentation tank and a sampling barrel. The sludge collectors are connected to the two sides of the hull. Each sludge collector includes a sludge collection pipe, a sludge collection port and a sludge shoveling collector; each sludge collection pipe is provided with the corresponding sludge collection port which is fitted with the corresponding sludge shoveling collector; each sludge collection port collects sludge of the float into the sludge collection pipe through the sludge shoveling collector; the sludge collectors are connected with the sludge pump inside the hull through corrugated pipes; a sludge outlet of the sludge pump is connected to the sedimentation tank through a pipeline; one side of the hull is provided with a lifting terrace; the sampling barrel is fixedly connected to the lifting terrace. The sediment removal apparatu