Full-automatic unstacking device

The utility model belongs to box goods conveying devices, and particularly relates to a full-automatic unstacking device. The full-automatic unstacking device comprises a lifting platform, wherein the lifting platform is connected with a tray, a first circulation pushing device is arranged above the tray, a platform is arranged on one side of the first circulation pushing device, a second circulation pushing device is arranged above the platform, and a conveying line is arranged at the position as high as the platform. The full-automatic unstacking device is simple in structure and reasonable in design, through interval and circulation pushing matching of the lifting platform, the first circulation pushing device and the second circulation pushing device, circular box pushing unstacking is achieved, and the unstacking efficiency is high. Moreover, the full-automatic unstacking device is simple in component, low in production cost, and capable of achieving energy saving and consumption reducing.