The coke oven gas orifice box is an innovative design aimed at the difficulty of changing the orifice plate in the coke oven. It is used to install an orifice plate on the gas pipeline for heating the coke oven to regulate the gas flow rate. This product has a novel structure, convenient operation, good sealing performance, and can improve work efficiency by 120 times. It is widely promoted and applied in new coke ovens and coke oven maintenance, and is highly praised by users.