Mine underground excavation operation environment risk early warning method

The invention discloses an environment risk early warning method for mining operation in an underground mine. The method comprises the following steps: acquiring risk perception data and associated parameter data in a group of continuous sampling periods in an area to be early warned; a plurality of areas to be pre-warned exist in the whole mining area; performing data screening on the risk perception data to generate effective risk perception data; according to the effective risk perception data, calculating an area risk value of each area to be pre-warned, and constructing a multi-parameter risk matrix of the whole mining area; and inputting the whole mining area multi-parameter risk matrix into the risk level judgment model, and outputting the risk early warning level of the whole mining area working environment. By monitoring risk sensing data such as explosive gas, dust and poisonous and harmful gas in an operation environment, a risk matrix is established, the total danger level of the whole mine area i