Construction site environment monitoring device based on environment protection

The utility model discloses a construction site environment monitoring device based on environmental protection, which comprises a transverse plate and a case, the top end of the transverse plate is fixedly connected with the case, and one side of the top end of the case is fixedly connected with a gas detector. According to the construction site environment monitoring device based on environmental protection, by arranging the elastic clamping block, when the device is used for monitoring, after a cover plate at the top end is opened, a first filter screen at the top end of a gas detector can prevent dust from entering the gas detector; a second filter screen at the top end of the pollutant content detector can prevent larger impurities from entering the pollutant content detector, and particulate matters in the air can enter the pollutant content detector to be detected; after detection is completed, elastic clamping blocks on the two sides can be pulled to take down the frame from the top ends of the gas de