Blending and feeding device for blended fertilizer

The utility model belongs to the technical field of fertilizer production, and particularly relates to a bulk blending fertilizer batching and feeding device which comprises a batching box, a hollow column and a feeding bin, the bottom of the feeding bin is fixedly connected to the bottom of the batching box, a conveying motor is fixedly connected to the bottom of the left side of the batching box, and a piston is opened to drive the feeding bin to rotate. Two fertilizers are poured into the first fertilizer box and the second fertilizer box respectively, then the push block is pulled rightwards to drive the connecting rod to move rightwards, so that the elastic ring is compressed, the connecting rod is pulled out of the conveying pipe, the hand is loosened according to the proportion of the required fertilizers, the elastic ring needs to be reset, and the connecting rod is driven to be inserted into the conveying pipe. The discharging device is started to limit discharging, then the mixing motor is started t