Vacuum multi-disc pulp washer

The invention provides a vacuum multi-disc pulp washer which comprises a rack. One side of the rack is provided with a transmission side bearing device. The other side of the rack is provided with a distribution valve side bearing device. The rack is provided with multiple segments of pulp washing regions. Each pulp washing region comprises a pulp washing groove. The pulp washing grooves are communicated through a pulp feeding system. A plurality of filtering circular discs are arranged in each segment of the corresponding pulp washing groove. The filtering circular discs are connected with a circular disc shaft. The end, close to the transmission side bearing device, of the circular disc shaft is connected with a transmission device. The end, close to the distribution valve side bearing device, of the circular disc shaft is connected with a vacuum system through a distribution valve. The vacuum system is further connected with the filtering circular discs. Through multiple segments of washing, the whiteness of pulp is improved, the pulp is concentrated in the washing process, multiple purposes are achieved through the vacuum multi-disc pulp washer, and water consumption is saved.