Coal slime coal-water separator

The invention discloses a coal slime coal-water separator. The coal slime coal-water separator comprises a cylinder body with an inner cavity and a rotating shaft that extends up and down and is installed in the inner cavity, two or more separation trays are sequentially arranged from top to bottom on the rotating shaft, the upper surface of each separation tray is a concave surface, the height ofthe concave surface is gradually reduced from the periphery of the separation tray to the rotating shaft, a plurality of slag falling gaps for coal slag to fall off are formed in the peripheral edgesof each separation tray, the rotating shaft is provided with a drainage channel used for draining filtered coal water, the rotating shaft is provided with communicating holes corresponding to the separation trays and used for enabling the coal water on the concave surfaces to flow into the drainage channel, the cylinder body is provided with a feeding port, the feeding port is formed above the separation tray on the upper