Working platform of plasma numerical control cutting machine

The utility model relates to the technical field of plasma numerical control cutting machines, and discloses a plasma numerical control cutting machine working platform which comprises a water pool, a lifting mechanism is arranged in the water pool, a drainage mechanism is arranged on the front face of the water pool, the lifting mechanism comprises a driving assembly and a supporting assembly, and the driving assembly is arranged in the water pool. The supporting assembly is arranged in the water pool, the driving assembly comprises a motor, the motor is fixedly connected to the front face of the water pool, the output end of the motor is fixedly connected with a two-way screw, and the exterior of the two-way screw is fixedly connected with a belt wheel. According to the working platform of the plasma numerical control cutting machine, in the using process, the arranged two-way screw rotates to drive the supporting rod to support the filter plate, the filter plate is made to be higher than the water level, i