Low-temperature condensation type oil mist trapping structure and trap

The invention discloses a low-temperature condensation type oil mist trapping structure and a trap, relating to the technical field of oil mist traps. The low-temperature condensation type oil mist trapping structure comprises an oil mist trapping chamber, wherein a guide plate is arranged in the oil mist trapping chamber above an air inlet; a gas separation plate is arranged in the oil mist trapping chamber below the air inlet, so that the oil mist trapping chamber is divided into an upper chamber, a middle chamber and a lower chamber; and a condensing component is arranged in the upper chamber. According to the invention, through the arrangement of the guide plate and the gas barrier plate, the guide plate guides incoming gaseous oil mist to form a uniform and densely distributed airflowto be led into the upper chamber body, and a condensing part is used for condensing and purifying the uniform and densely distributed airflow to form liquid oil mist, so that the purification treatment rate is increased; mea