Sealing device of vibrating feeder

The utility model relates to a sealing device of a vibrating feeder, and belongs to the technical field of vibrating feeder equipment in the metallurgical industry. Comprising an upper flange plate set (1), a sealing sleeve (2), an upper inner lining plate sleeve (3), a lower inner lining plate sleeve (4) and a lower flange plate set (5), the sealing sleeve (2) is of a sleeve-shaped structure with the upper end opening and the lower end opening provided with outwards-turned edges, and the upper outwards-turned edges and the lower outwards-turned edges of the sealing sleeve (2) are clamped between two layers of flange plates of the upper flange plate set (1) and the lower flange plate set (5) respectively. The upper lining plate sleeve (3) and the lower lining plate sleeve (4) are arranged in the sealing sleeve (2), the upper lining plate sleeve (3) is fixedly connected to the lower end face of the upper flange plate set (1), and the lower lining plate sleeve (4) is fixedly connected to the upper end face of t