Pulsating feeder

The invention provides a pulsating feeder. The pulsating feeder comprises a mounting platform, a spiral material conveying mechanism, a pulsating generator and a material conveying head; the spiral material conveying mechanism is arranged at the top of the mounting platform, the pulsating generator is arranged at the bottom of the mounting platform, a material conveying hopper is used for receiving materials conveyed by the spiral material conveying mechanism and transferring the materials into an electrolytic furnace molten pool, and the material conveying head is driven to move by the pulsating generator. According to the pulsating feeder, powder is continuously and evenly given through spiral feeding, the contact area of the powder and ascending hot air flow is reduced, flying losses ofthe powder are reduced, meanwhile, the material conveying hopper is away from an electrolysis furnace opening by a certain distance and does not make contact with high-temperature molten salt, and the effect of protecting th