A decontamination machine is a mechanical equipment used to remove debris attached to a debris weir. It is a water treatment device capable of clearing variously shaped debris from fluids and can be widely applied in pumping stations, hydropower plants, urban wastewater treatment, water supply industries, and power plant intake. It can also serve as a preliminary screening device in the wastewater treatment processes of industries such as textiles, food processing, papermaking, and leather, making it one of the solid-liquid separation equipment.