Cutting fluid recovery device for numerical control machine tool

The invention discloses a cutting fluid recovery device for a numerical control machine tool, and relates to the technical field of cutting fluid recovery. Comprising a rack, two side plates are installed at the top of the rack and arranged in parallel, a flow guide plate assembly is arranged between the two side plates, and the two ends of the flow guide plate assembly are flush with the two ends of the side plates respectively; the flow guide plate assembly comprises a plurality of flow guide flat plates, the flow guide flat plates are arranged in parallel and arranged in a step shape from bottom to top, a flow guide vertical plate is connected between every two adjacent flow guide flat plates, and the two sides of the flow guide flat plates and the two sides of the flow guide vertical plates make contact with the inner sides of the two side plates respectively; a liquid inlet box is arranged at one end of the guide plate assembly, a liquid discharge box is arranged at the other end of the guide plate assem