Quicklime digestive system

The utility model provides a quicklime digestive system. The quicklime digestive system comprises a hopper, a feeding machine, a screw conveyer and a three-level digestion machine, wherein the feeding machine is arranged below the hopper; the screw conveyer is connected below the feeding machine; a first-level digestion machine is connected to the lower end of the screw conveyer; a second-level digestion machine and a third-level digestion machine are connected below the first-level digestion machine in sequence; a water inlet pipe is arranged on the first-level digestion machine; and a feed valve, a flowmeter and a flow control valve are arranged on the water inlet pipe in sequence. By adopting the quicklime digestive system, the water inflow is adjusted, so that the water ratio of final finished product slaked lime is controlled, and quicklime is digested fluffy pulverized lime.