Automatic discharging trough of pig feed

The utility model belongs to the breeding equipment manufacturing technical field and provides an automatic discharging trough of pig feed. The automatic discharging trough is formed by a material hopper, a trough, a supporting rod and a stirring mechanism; the material hopper is in a funnel shape; a support is arranged in the material hopper; the center of the support is provided with a through hole; the trough is provided with the supporting rod which is vertically upward; the top end of the supporting rod is provided with a short column which penetrates the through hole of the support from below; a gap is formed between the bottom of the material hopper and the inner bottom surface of the trough; the bottom of the supporting rod is provided with a lantern ring which is connected with a horizontal shift rod; the shift rod is arranged in the trough and connected with a stirring rod which is arranged in the material hopper. Dry feed is added into the material hopper, pigs arch in the trough with mouths to rot