The invention discloses an environmental-friendly cigarette case which comprises a first case body. A first partition plate is vertically arranged in the first case body and partitions the first casebody into two cavities including a left cavity for cigarette butt placement and a right cavity for cigarette placement. The top of the first case body is provided with a first opening, a second case body is hinged to the first opening and comprises a right side plate and a bottom plate for sealing the first opening, and the top of the second case body is provided with a second opening. The bottomplate is slidably connected in the second case body, the right side plate is provided with a first through hole, a second partition plate is vertically embedded in the second case body and provided with a second through hole, the second partition plate is slidably connected in the second case body, and an air cylinder is arranged on one side, close to the left cavity, of the second partition plateand connected with a vertical cutter and a control button. By adoption of the scheme, cigarette butt collection and extinguishing can be realized.