The invention relates to a continuous carbon catalytic CH4-CO2 reforming reactor, wherein a catalyst feeding mechanism is arranged at the top of an inverted T-shaped reactor, a screw conveyer is adopted for continuously adding a catalyst, and the catalyst continuously moves from top to bottom under the effect of gravity to realize continuous operation; both sides at the bottom are communicated with a left lateral arm and a right lateral arm which are corresponding to each other, and an O2 inlet and a coke oven gas inlet are arranged at the end parts of the left lateral arm and the right lateral arm; a discharging mechanism and a water sealed device after carbon catalysis are arranged at the bottom end to prevent pollution; a catalyst bed is arranged in the inverted T-shaped reactor; and aproduct gas outlet is arranged at the upper side. The continuous carbon catalytic CH4-CO2 reforming reactor has simple structure and process flow and is practical for continuous carbon catalytic CH4-CO2 reforming reaction.