The invention discloses an environmentally-friendly compound gas-burning three-dimensional porous infrared radiation device and relates to the technical fields of gas burning, pre-heating and pre-mixing, double-cavity overlaying function design, porous plane burning carriers, three-dimensional porous multiphase composite ceramic substrates and low-temperature catalysis infrared emission optimizing energy conversion. The device comprises supporting bars, porous radiation plates, a composite coating, an igniter, fixing nails, a fixing frame, an annular cavity wall, heat exchange pipes, a heat exchange pipe fixing sheet, a cavity containing box, a heat preservation layer, an injection head, an injection pipe, a flange, a spiral sheet, a gas inlet pipe, a punching plate, a burning carrier, sealing glue, a fixing seat, a lower cover, an upper cover, an outer frame and an installation member, wherein the injection pipe extends into the hole of the cavity containing box and then is fixedly connected with the injection head, the burning carrier is arranged on the punching plate in a spot welding way, the igniter is arranged in an annular cavity at the upper part of the burning carrier, one ends of the heat exchange pipes extend into the heat exchange pipe fixing sheet, the other ends of the heat exchange pipes are clung to the annular cavity wall, the composite coating is coated on the porous radiation plates and a plurality of porous radiation plates are fixed in the fixing frame.