Mining area dust monitoring and early warning device

The utility model discloses a mining area dust monitoring and early warning device, belongs to the technical field of dust monitoring and early warning, and aims to solve the problem that the accuracy of a mining area dust monitoring result is affected by moisture due to the fact that an existing dust monitoring and early warning device is inconvenient to prompt when a drying agent is saturated. According to the particulate matter on-line detector disclosed by the utility model, through the mounting part, the protection plate, the control part, the moisture absorption part, the prompting lamp, the mounting block and the movable detection part, when the particulate matter on-line detector is used, moisture in the particulate matter on-line detector can be absorbed by a drying agent, so that the particulate matter on-line detector can be dehumidified; when the drying agent absorbs moisture, the weight of the drying agent is increased, when the drying agent in the storage shell is nearly saturated, the moving bl