The utility model discloses a closed food level light calcium carbonate production system, including the base, the top of base turns right in proper order from a left side that fixed mounting forges burning furnace and separator box, forge between burning furnace and the separator box through the metal pipeline intercommunication, the outer fixed surface who forges burning furnace installs the water tank. The utility model discloses a set up the separator box, lime wash after calcining enters into the inside back of separator box, can enter into the inside of cylinder, can make the cylinder rotate behind the starter motor, thereby make water discharge from the inside of cylinder, thereby realize solid -liquid separation, through the cooperation that sets up bottom plate and heater, can dryto the calcium carbonate on the floor of dropping, make its inside moisture complete evaporation and be powderedly, simultaneously through setting up the lug, the area of contact who increases the calcium carbonate powder end makes the stoving quicker, the vibrator starts the back, the shake can take place for calcium carbonate, thereby it is quicker to make the evaporation of water in the calcium carbonate powder end.