The invention provides a dust removing and discharging conveying device of a confidential light disk finish machining all-in-one machine. The dust removing and discharging conveying device comprises a discharging conveying frame and a taking and embracing conveying mechanism. The discharging conveying frame is sequentially provided with a plurality of dust removing boxes. A stand column is arranged at a feeding port. The bottom of the stand column is fixedly connected with an air cylinder, and the top of the stand column is rotationally connected with an extension column. Mechanical arms are arranged at the two ends of the top of the extension column, the bottom of the extension column is sleeved with a gear, and the gear is fixedly connected with a motor located on the stand column. The taking and embracing conveying mechanism comprises a track conveying table, a rotary table and a taking and embracing truss. The taking and embracing truss is arranged on the rotary table, inserting and connecting plates are arranged at one end of the taking and embracing truss, and taking and embracing arms are arranged at the other end of the taking and embracing truss. Each taking and embracing arm is rotationally connected with a second hydraulic rod. A lower layer of the rotary table is connected with a sliding plate, and the sliding plate is fixed to the track conveying table in a sliding manner. The dust removing and discharging conveying device has the beneficial effects that the structure is firm, the labor intensity of workers is relieved, the transport safety is high, and the work efficiency is improved.