Packaging production line with double layers of conveyor belts

The utility model discloses a packaging production line provided with double layers of conveyor belts. The packaging production line comprises a bracket and a first conveyor belt, wherein the first conveyor belt is arranged on the bracket and driven by a first motor; a second conveyor belt is arranged above the first conveyor belt and driven by a second motor; and the top end of the bracket extends upwardly for supporting the second conveyor belt. By adopting the double layers of conveyor belts which are superposed up and down, area is saved through occupying space, and the total length of the packaging production line is reduced manyfold under the premise that production demands are met without reducing the total length of the conveyor belt, thus the production area occupied by the entire packaging production line is reduced greatly; besides, the conveyor belts are driven by respective motors, so that independent control based on production situations is convenient, and owning to the two conveyor belts, finished products packed in small bags and cartons filled with products packed in small bags are arranged separately, so as to avoid mixing package and miss package.