Public place second-hand smoke protection device

The invention belongs to the technical field of safety protection, and particularly relates to a public place second-hand smoke protection device. The comprises a purification box, a cigarette holderis fixedly connected to the outer wall of one side of the purification box, arc-shaped grooves are formed in the joint of the purification box and the cigarette holder at equal intervals, an equipartition assembly is arranged on the inner wall, close to the cigarette holder, of the purification box, the inner wall, close to the equipartition assembly, of the purification box is provided with a purification assembly, the equipartition assembly comprises two triangular guide plates, two inclined plates and a middle partition plate, the two inclined plates are fixedly connected to the inner wallsof the two sides of the purification box respectively, the two triangular guide plates are fixedly connected between the two inclined plates, and the middle partition plate is fixedly connected between the two triangular guid