Vacuum water tank for extruder

The utility model relates to a vacuum water tank for an extruder, which comprises a tank body, a tank cover arranged at the upper end of the tank body, an exhaust pipe connected to the tank body, an air inlet pipe arranged below the exhaust pipe, a water inlet pipe arranged opposite to the exhaust pipe, and a water outlet pipe connected to the bottom of the tank body, the filtering chamber is arranged above the settling chamber, and an outlet of the air inlet pipe is arranged above the settling chamber; multiple layers of filter screens are arranged in the filter chamber, a rotating shaft is arranged in the middle of each filter screen, a motor is connected to the upper end of each rotating shaft and installed on the box cover, and a cleaning brush is connected to each rotating shaft and arranged above the corresponding layer of filter screen. The settling chamber and the filter chamber are arranged in the box body, waste filtered by the filter screen is settled in the settling chamber, the waste is prevented