Gas molecule collision bond breaking decomposition device

The invention discloses a gas molecule collision bond breaking decomposition device. The gas molecule collision bond breaking decomposition device comprises a molecular bond breaking decomposition chamber, wherein a gas ejector and a gas decomposer are arranged in the molecular bond breaking decomposition chamber; a backflow chamber, wherein the backflow chamber is provided with a backflow pipe, is connected to the front part of the molecular bond breaking decomposition chamber and is used for leading airflow large circulation and accompanying small circulation to realize full collision and full decomposition; and a decomposition product collection chamber which is a cylindrical container coaxial with the molecular bond breaking decomposition chamber; wherein the gas decomposer which comprises a receiving section, a mixing section and a diffusion section. In application process, Momentum exchange and mutual collision are carried out on jet gas and gas in the mixing section to form turbulent flow, bond breakin