Feeding structure of reaction kettle

The utility model relates to a feeding structure of a reaction kettle, which comprises a reaction kettle body provided with a feeding hole at the top, a discharging pipe at the bottom and a stirring device inside; the vacuum feeding box is arranged at the feeding port, and the interior of the vacuum feeding box is divided into a metering box and a vacuum box from top to bottom; the storage box is arranged on the side wall of the reaction kettle body, the interior of the storage box is used for storing raw materials, and a feeding opening is formed in the side wall of the storage box; two ends of the conveying pipe are respectively connected with the metering box and the interior of the storage box; the negative pressure device is arranged on the conveying pipe and can generate negative pressure in the conveying pipe; and the liquid level monitoring device is used for monitoring the liquid level height in the storage tank in real time and is connected with an alarm. Compared with the prior art, a worker only n