Self-pressing type desilting device

The utility model discloses a self-pressure type desilting device, which relates to the technical field of wet desulphurization sewage treatment and comprises dewatering filter cloth, a sludge discharge port, a desliming carrier roller and desliming filter cloth, the desliming filter cloth is arranged on the upper side of the dewatering filter cloth, and the height of the first end of the desliming filter cloth is larger than that of the second end of the desliming filter cloth. The sludge discharging opening is formed in the upper side of the first end of the desliming filter cloth, the second end of the desliming filter cloth is in lap joint with the upper side of the dewatering filter cloth, and the desliming carrier roller is arranged on the upper side of the desliming filter cloth and located between the first end and the second end. The slurry is uniformly spread by the desliming carrier roller, so that the conditions that the dewatering effect is poor due to non-uniform distribution of the slurry on th