Working platform of plasma numerical control cutting machine

The utility model discloses a working platform of a plasma numerical control cutting machine, which comprises a water tank body which is divided into a working layer and a water storage layer. A partition plate is arranged between the working layer and the water storage layer; the working layer is made of steel plates, and the steel plates are fixedly arranged on the upper surface of the partition plate at intervals; the water storage layer is located on the lower portion of the partition plate, and an air bag capable of being contracted and expanded is arranged in the water storage layer. The double-layer water tank is arranged, the air bag is arranged in the lower layer and connected with an external air source, water can rapidly enter the space between the upper layer and the lower layer through contraction and expansion of the air bag, the water level requirement during work and workpiece clearing is met, the structure is simple, the work efficiency is improved, the station requirement is met, and existin