Coal mine underground water flow field back-filling simulation experiment platform

The invention relates to the technical field of coal mine simulation experiments, in particular to a coal mine underground water flow field back-filling simulation experiment platform. Comprising a vibrating frame, a side plate is arranged on one side of the vibrating frame, and a plurality of inserting mechanisms are distributed on the side plate at equal intervals in the vertical direction; a finished product water storage box, a coal mine simulation unit, a plurality of groups of soil property simulation units and a group of earth surface simulation unit are sequentially clamped in each group of insertion mechanism from bottom to top. The earth surface simulation unit, the coal mine simulation unit, the finished product water storage box and each group of soil property simulation unit can be independently detached. And the real distribution condition of the underground soil layer of the experimental site can be really simulated through each group of soil simulation units. When a sample needs to be extracte