Excavated matter conveyance system inside driftway

An excavated matter conveyance system inside a driftway comprising:

• a first vehicle that is capable of traveling inside a driftway;
• a first conveyor that is supported by an upper portion of the first vehicle and is capable of conveying excavated matter in a first conveyance direction intersecting an upward-downward direction of the first vehicle;
• a second vehicle that is coupled to the first vehicle in a swingable manner;
• a second conveyor that is supported by an upper portion of the second vehicle and is capable of conveying the excavated matter in a second conveyance direction intersecting an upward-downward direction of the second vehicle;
• and
• movement apparatuses that are capable of relatively moving the first conveyor and the second conveyor,
• wherein the movement apparatuses each include
• a first hydraulic cylinder that couples the first vehicle and the first conveyor to each other such that the first conveyor is movable in a direction orthogonal to the upward-downward direction of the first vehicle, and
• a second hydraulic cylinder that couples the second vehicle and the second conveyor to each other such that the second conveyor is movable in a direction orthogonal to the upward-downward direction of the second vehicle.