Double-channel heading machine

The utility model relates to the technical field of tunnel construction equipment, in particular to a double-channel heading machine. The utility model aims to protect the double-channel heading machine, the double-channel heading machine comprises a cutterhead and a shield body, an air cushion pressure regulating cabin is arranged at the front part of the shield body, and an excavation cabin is formed between a front cabin plate of the air cushion pressure regulating cabin and the cutterhead. And a normal-pressure open space is arranged below the air cushion pressure regulating cabin, so that equipment in the normal-pressure open space is convenient and safe to maintain. The heading machine further comprises a spiral conveyor and an excavation cabin slurry discharging pipeline, a spiral conveyor installation opening is formed in the front partition plate of the normal-pressure open space, and a conveyor gate is arranged at the spiral conveyor installation opening. The excavation cabin slurry discharging pipe