This utility model discloses a pulp draining cage, including a draining mesh cylinder, a supporting frame fixed to the outside of the draining mesh cylinder, connecting frames fixed to both ends of the supporting frame, and a fixed rotating shaft located inside the draining mesh cylinder and fixedly connected to the connecting frames. A rotating shaft seat is installed on the fixed rotating shaft, and a roller frame is suspended below the rotating shaft seat by a chain. A pressure roller that is rolled and connected to the inner wall of the draining mesh cylinder is installed inside the roller frame. A rake plate is provided on one side of the pressure roller, and the rake plate is movably connected to the roller frame, with its lower edge in contact with the inner wall of the draining mesh cylinder. In this utility model, the pressure roller and rake plate are always located inside the lower part of the draining mesh cage due to gravity. When the draining mesh cage rotates and drives the pulp to move, the pulp is squeezed and drained by the gravity of the pressure roller, improving the draining efficiency. At the same time, in order to prevent the pulp from being squeezed and adhering to the inner wall of the draining mesh cylinder, the rake plate scrapes the inner wall of the draining mesh cylinder when the draining mesh cylinder rotates, achieving the effect of not affecting the pulp conveying and improving the draining efficiency.