Sliding bearing indoor smoke exhaust device

The utility model discloses an indoor smoke exhaust device for a sliding bearing, which comprises a turbulent flow fan blade structure which is arranged on a rotating shaft and is used for exhausting smoke and cooling two sides of a bearing bush, and a dust removal cover which is positioned on two sides of the bearing bush and is communicated with a dust removal pipe, the turbulent flow fan blade structure comprises an annular fixing base fixed to the rotating shaft and fan blades fixed to the annular fixing base. According to the newly designed smoke exhaust fan blade, the structure of a bearing chamber is not changed, only the two fan blades fixed through bolts are symmetrically installed on the two sides of the bearing bush, the fan blades rotate at a high speed along with the high-speed rotation of the main shaft, and therefore part of oil smoke floating outside along an oil shield gap is subjected to turbulent flow treatment and prevented from being condensed into oil liquid drops, and the oil smoke is p