The utility model discloses a tipping apparatus driven by a liquid-operated pin tooth, the tipping apparatus belongs to the mine mechanical technical field. The tipping apparatus comprises a circular roller, wherein, the bottom of the roller is provided with a base, the lower parts of the two sides of the roller of the base are respectively provided with supporting idler wheels, the inner part of the roller is provided with a track along the length direction and a car arrester corresponding to the track. The tipping apparatus is characterized in that the lateral lower part of one end of the roller is provided with a gear wheel driven by the hydraulic pressure, the end part of the roller is provided with a pin wheel coaxial with the roller, and the pin wheel is matched with the gear wheel. When the tipping apparatus works, the gear wheel is matched with the pin wheel to drive the roller and a tramcar to rotate, the mineral aggregate inside the tramcar is dumped, the roller is rotated continuously, after the tramcar is reset, the tramcar can be separated from the roller. The tipping apparatus has high transmission efficiency, high positioning accuracy, shallow base of the tipping apparatus and convenient overhauling; the hydraulic driving has the function of overpower protection, a motor is not easy to burn down. The tipping apparatus can be applied to the mineral aggregate transportation.