Natural gas dry and wet reforming hydrogen production and carbon capture coupling system

The invention relates to a natural gas dry and wet reforming hydrogen production and carbon capture coupling system which comprises a natural gas steam reforming unit, natural gas and steam are preheated by a steam reforming feed gas preheater and then enter a steam reforming converter to react, and gas generated by the reaction is cooled by the steam reforming feed gas preheater and then enters a conversion furnace; according to the hydrogen pressure swing adsorption purification unit, hydrogen is separated from the gas reacted by the conversion furnace through a pressure swing adsorber, and the rest gas enters a steam reforming conversion furnace to be combusted; combustion flue gas of the carbon dioxide trapping unit, the steam reforming converter and the dry reforming converter flows through a carbon trap, and carbon dioxide gas is subjected to separation treatment; according to the natural gas and carbon dioxide dry reforming unit, natural gas and part of carbon dioxide gas captured by the carbon capture