A slag hopper turning device and a slag hopper crane using the same. The slag hopper crane includes a trolley platform, a lifting reel is arranged on the trolley platform, and a slag hopper is suspended under the hoisting drum through a hoisting device , the slag bucket is provided with a rotating shaft for corresponding rotation with the hoisting sling, the trolley platform is provided with a turning device, the turning device includes a swing rod hinged on the trolley platform, and the swing rod is provided with A hook for hooking the slag hopper. A fixed shaft is arranged on the slag hopper for hooking and matching with the hook of the pendulum rod. The turning device also includes a driving system fixed on the trolley platform. The system includes a driving rod that reciprocates along a straight line, and a traction mechanism is provided between the driving rod and the pendulum rod for pulling the hook of the pendulum rod around the pendulum rod to swing upward corresponding to the hinge part of the trolley platform under the driving of the driving rod. The mechanism consists of connecting rods and/or traction ropes.