Coal mine dynamic disaster multi-parameter coupling and determining device

The invention relates to a coal mine dynamic disaster multi-parameter coupling and determining device and relates to the coal mine dynamic disaster determining device. By adopting the coal mine dynamic disaster multi-parameter coupling and determining device, a real coal mine underground dynamic disaster occurrence environment can be simulated, and the surrounding rock stress and gas pressure when the dynamic disaster happens can be accurately measured. Two perpendicular synchronous loading hydraulic cylinders are respectively fixedly connected with the upper surface and the lower surface of a high-pressure-resisting rigid closed shell, and two perpendicular synchronous loading hydraulic cylinder rods are fixedly connected with a pressure block I which is arranged in the high-pressure-resisting rigid closed shell; two horizontal synchronous loading hydraulic cylinder bodies are fixedly connected with the left outer side surface and the right outer side surface of the high-pressure-resisting rigid closed shell, and two horizontal synchronous loading hydraulic cylinder rods are fixedly connected with a pressure block II which is arranged in the high-pressure-resisting rigid closed shell; rodless cavities of the two perpendicular synchronous loading hydraulic cylinder bodies are respectively communicated with cylinder bodies of two small plunger hydraulic cylinders II through two pipelines I, and rodless cavities of the two horizontal synchronous loading hydraulic cylinder bodies are respectively communicated with cylinder bodies of two small plunger hydraulic cylinders II through two pipelines II. The coal mine dynamic disaster multi-parameter coupling and determining device is used for determining dynamic disaster parameters of a coal mine.