Cake oven air draft system

The utility model provides an air draft system of a cake oven. The air draft system of the cake oven comprises the oven, an air collecting bin, an air collecting bin and an air draft pipeline. According to the air draft system of the cake oven, the air collecting bin is installed above the side, provided with the bin door, of the oven, the bottom of the air collecting bin is of an open structure, and the multiple collecting openings are formed in the top of the air collecting bin. During use, when an operator opens the bin door to extract the tray, hot air in the tray moves upwards due to heat of the hot air and sequentially passes through the air collecting bin and the air collecting bin, the hot air is extracted out through the air extracting pipeline in the later period, and the hot air in the tray is extracted out through the air collecting bin and the air extracting pipeline. Therefore, the indoor environment pollution caused by the indoor temperature rise due to the hot air residue in the room is avoide