Main equipment of water cabin clean silt system formed with clean silt robot, rough dividing machine, press filter machine, transporting machine and other equipment, clean silt robot walking in water cabin, realize that collect the coal muddy; the rough dividing machine and press filter machine been placed at the fix position of water cabin port, used into post treatment of muddy, able to meet that muddy and water separation of 10μm～40mm pellets; transporting machine been placed at the fix position of water cabin port, connect with press filter machine, realize the transporting of dry coal muddy after the muddy and water separated. The robot semi self clean silt mode, automatically retrieve and release cable, material feeding mechanism module design, able to adjust aim to the water cabin width, torque sense to realize that soft clean silt.