Smoke detector with spoiler design

The invention discloses a smoke detector with a turbulent flow design. The smoke detector comprises a substrate, a light detection module, an upper cover, a base and a coating piece, the substrate is provided with a central monitoring area arranged in the center of the substrate and an annular area surrounding the central monitoring area. The light detection module is arranged in the central monitoring area. The upper cover is provided with a side wall. The base is provided with a connecting rib connected with the upper cover. The base is arranged in the annular area of the substrate, so that the side wall of the upper cover covers the optical detection module. The wrapping piece is arranged on the side, opposite to the base plate, of the base so as to cover a smoke guide channel formed by the connecting rib between the upper cover and the base, and the wrapping piece is provided with a guide hole structure which is asymmetrically designed and used for being communicated with the smoke guide channel. Accordin