Integral injector

The utility model belongs to an injector, and particularly discloses an integral injector which comprises an injector base, an ignition jet tube, an oxidant cavity and a face plate. The ignition jet tube is positioned in the center of the injector base, the oxidant cavity is arranged on the upper portion of the injector base, the face plate is positioned inside the bottom of the injector base, a fuel cavity is formed between the injector base and the face plate, a jet nozzle is arranged between the injector base and the face plate, and the injector base and the ignition jet tube are structurally integrated. The integral injector has the advantages that potential safety hazards due to leakage at weld joints are eliminated, and the shortcoming of channeling of oxidants and fuel in an injector of a thrust chamber of a rocket engine and shortcomings of large welding deformation and long machining period are overcome.