Container bulk material auto unloading device

The utility model relates to a device which can carry out auto unloading of the container semi-trailer bulk material. The device better solves the auto unloading technique problem of bulk material logistic containerization. With a semi-trailer or an auto unloading platform along with the container raising and inclining together, the bulk material in the container can obtain the automatic sliding off; simultaneously, equipment requirement for the unloading field is reduced so as to enormously improve the unloading efficiency. A hydraulic lift device is arranged in and hinged with the semi-trailer or the auto unloading platform can telescopically drive the container and the hydraulic lift device revolves around a hinge point fixed with a back wheel axle center of the semi-trailer or the platform. The hydraulic lift device is hinged with a lower support leg; the holding power of the support leg comes from the earth surface. The utility model is mainly suitable to all container semi-trailers for transporting bulk material and bulk material unloading fields.