Carbon dioxide incubator capable of conveniently adjusting concentration of carbon dioxide

The utility model relates to the technical field of carbon dioxide incubators, in particular to a carbon dioxide incubator convenient for adjusting carbon dioxide concentration, which comprises an incubator body and a concentration adjusting box, and the incubator body and the concentration adjusting box are both of square structures and are communicated with each other; an opening is formed in one side of the incubator body, an incubator door is mounted at the opening through a hinge, and a handle is arranged on the incubator door; a carbon dioxide inlet pipe and an air inlet pipe are arranged on the side face of the concentration adjusting box, carbon dioxide concentration sensors are arranged in the incubator body and the concentration adjusting box, a control box is arranged on the side face of the incubator body, and the carbon dioxide concentration sensors are electrically connected with a controller in the control box. A first exhaust pipe and a second exhaust pipe are respectively arranged on the uppe