Coke oven gas collecting, energy-saving and consumption-reducing system

According to the coke oven gas collecting, energy-saving and consumption-reducing system, a coke oven comprises a plurality of carbonization chambers, each carbonization chamber is connected to a gas pipeline through an ascending pipe, a manual valve is installed on the ascending pipe, a valve shaft is rotatably installed on the manual valve, a handle is fixedly connected to the valve shaft outside the manual valve, a valve plate is fixedly connected to the valve shaft inside the manual valve, and the valve plate is fixedly connected to the valve shaft outside the manual valve. The gas pipeline is connected to the fan, an adjusting rod is hinged to the handle, a hole plate is fixedly arranged at the position close to the manual valve, five positioning holes are formed in the hole plate, an inserting hole is formed in the adjusting rod, and the first gear valve plate is in the vertical direction; the included angle between the second gear valve plate and the horizontal direction is 76-81 degrees; the included