Device for measuring scattering of light in measuring area

The utility model relates to a device for checking and measuring the scattering of light of an optical receiving device. The device for measuring the scattering of light in a measuring area comprises a light transmitter and a light receiver, wherein the light transmitter is used for transmitting the beam of light into a measuring space, and the light receiver is provided with a receiving optical element for capturing the scattered light in the measuring area. An adjusting unit is arranged to facilitate the conversion of the measuring mode and the checking mode. In the measuring mode, the optical axes of the light transmitter and the light receiver keep a certain angle and intersect in the measuring area, and in the checking mode, the optical axes of the light transmitter and the light receiver are parallel to each other, and the beams of light covers the optical receiving device gradually to identify pollution. In addition, the receiving optical element is rotationally fixed on a movable rotating shaft. The receiving optical element is made to rotate around the rotating shaft under the adjustment of the adjusting unit in the checking mode until the optical axis of the optical receiving device is parallel to the optical axis of the light transmitter, and then the rotating shaft and the receiving optical elementare moved.