Coal body stress detection support

A coal stress detection support relates to the technical field of coal mine construction and comprises a pulverized coal collector, a camera device and a detection device, the pulverized coal collector is used for collecting pulverized coal spirally taken out by a drill rod in the drilling process, and the bottom of the pulverized coal collector is connected with a collection bag; the camera device is used for recording the whole drilling process; by arranging the reducing tee, the screw head, the connecting pipe and the collecting bag, during collecting, the drill rod penetrates through a through opening in the left side of the reducing tee and extends out of the other end of the connecting pipe to drill a coal rock mass, and pulverized coal is spirally taken out through the drill rod and enters the collecting bag through a through opening in the lower end of the reducing tee to be collected in a unified mode; in the spiral drilling process, the drill rod is located in the connecting pipe, pulverized coal is