Mosquito removing device capable of recycling carbon dioxide

The utility model provides a mosquito killing device capable of recycling carbon dioxide. The mosquito killing device comprises a shell, a carbon dioxide circulation assembly and a discharge pipe. The discharge pipe is hollow to form a cavity, and a plurality of exhaust holes penetrating from the outer surface to the cavity are formed in the discharge pipe at intervals; the discharging pipe further comprises a discharging port and a recycling port which are arranged at the two ends respectively, and the discharging port and the recycling port are both connected with the carbon dioxide circulating assembly. The shell is provided with a through opening corresponding to the discharge pipe, and at least part of the discharge pipe is exposed out of the shell through the through opening so that the exhaust hole can be exposed out of the shell. By forming the multiple exhaust holes, slow release and dispersed emission of carbon dioxide are achieved, the action area of the carbon dioxide is increased, the problem tha