Bulk cargo transportation device and coal mining line

The invention provides a bulk cargo transportation device and a coal mining line, relates to the technical field of coal mining, and aims to solve the problem of low unloading efficiency. The bulk cargo transportation device comprises a cargo bucket, a flexible containing piece and a first driving mechanism, and a side opening is formed in the side wall of the cargo bucket; the first driving mechanism is connected with the first end of the flexible accommodating piece; the flexible containing part can be switched between a first state and a second state, and when the flexible containing part is in the first state, the flexible containing part can block the side opening and can be matched with the inner wall of the cargo bucket to contain materials; the flexible containing part can be driven by the first driving mechanism so that the second end, located on the side wall, of the flexible containing part can move downwards to be switched to the second state, and when the flexible containing part is in the second