Rotational flow washing device

The utility model provides a rotational flow washing device, which belongs to the technical field of industrial oil fume purification equipment and comprises a washing pipe, a rotational flow plate, a washing nozzle, a waterproof screen plate, a bottom support and a circulating water tank, the washing pipe comprises an air inlet pipe section, a rotational flow pipe section, a gas-liquid mixing pipe section and an air outlet pipe section; an air inlet pipe is arranged on the air inlet pipe section; the rotational flow plate is arranged in the rotational flow pipe section; the washing nozzle is arranged on the rotational flow plate; the waterproof screen plate is arranged on the air outlet pipe section; the bottom support is arranged at the lower end of the air outlet pipe section, and a water leakage pipe is arranged on the bottom support; the circulating water tank is arranged below the bottom support and communicated with the water leakage pipe, an oil-water separator is arranged in the circulating water tan