The utility model relates to a double-gas source device of an emergency cut-off valve for a gas-collecting station, which is applied to the emergency cut-off control of a natural gas safety passage of an oilfield gas production station, and mainly comprises a nitrogen bottle group, valves, an air compressor, an air storage tank, pneumatic emergency cut-off valves and pipelines; four nitrogen bottle outlets of the nitrogen bottle group are connected with a main pipeline in parallel, the valve is arranged on the main pipeline, the other end of the main pipeline is respectively connected with the pneumatic emergency cut-off valves in parallel, the air outlet of the air compressor is connected with the inlet of an air storage pipeline through the pipeline, the outlet of the air storage pipeline is connected with the main pipeline among the pneumatic emergency cut-off valves through the pipelines, and the outlet pipeline of the air storage tank or the air storage pipeline is connected with the valve. After a double-gas source system is applied, the material resources and the financial resources required by frequently replacing nitrogen bottles are reduced, and the operating cost of pneumatic valves is lowered; a pressure air storage pipeline is used for replacing a pressure storage tank, thereby the operational safety factor is increased, and the equipment management is facilitated; and the gas source system has small external dimension and is easy for popularization and application.