Double-plugging hole packer

The utility model discloses a double-plugging hole packer, comprising a gas drainage pipe, a first expansion bag, a second expansion bag and a grouting pipe, wherein the first expansion bag and the second expansion bag are elastic bags and are arranged in parallel; the gas drainage pipe penetrates the first expansion bag and the second expansion bag; a gas drainage porous pipe is connected to the front end of the gas drainage pipe; the connecting parts of the gas drainage pipe, the first expansion bag and the second expansion bag are sealed; the grouting pipe passes through the first expansion bag and enters the second expansion bag from one side; the front end of the grouting pipe is located in the second expansion bag; the end part of the front end is sealed; the connecting parts of the grouting pipe, the first expansion bag and the second expansion bag are sealed; the grouting pipe is provided with a first gas hole in the first expansion bag, is provided with a second gas hole in the second expansion bag and is provided with a third gas hole between the first expansion bag and the second expansion bag; a gas one-way valve is arranged on each of the first gas hole and the second gas hole; and a gas sequence valve is arranged on the third gas hole.