Oil mist recovery device

The utility model discloses an oil mist recovery device, and belongs to the technical field of machining equipment. Comprising a collecting box, an air inlet pipe penetrates through the side wall of the upper portion of the collecting box, an air extracting pump is communicated with the side wall of the lower portion of the collecting box, a collecting barrel is arranged in an inner cavity of the collecting box, and a collecting component is arranged in an inner cavity of the collecting barrel and communicated with the air inlet pipe and comprises an air collecting pipe, a first collecting sleeve and a second collecting sleeve. The gas collecting pipe is longitudinally arranged in the collecting barrel and is communicated with the gas inlet pipe, the first collecting sleeves are uniformly arranged on the outer wall of the gas collecting pipe in a sleeving manner, and the second collecting sleeves are arranged between the adjacent first collecting sleeves. The oil mist can be concentrated at the bottom of the