The utility model provides a multi -functional terminal dust removal coupling relates to the tobacco industry throwing, roast production field again, is applicable to the separate unit dust remover and removes dust to a plurality of dirt pitss that remove of single dust removal dot OR through the tuber pipe, and especially need go on regularly the material that removes dust or periodic detection is especially not suitable. The utility model discloses mainly by the constant diameter cross body, the awl that gathers materials, mend the wind regulating plate, mend the aerofoil, down closure plate and flange and connection fastening form with bolt, nut etc. The cross tubular constant diameter cross body go up the port connect the awl that gathers materials, down under the port connection quick detach formula closure plate, 90 elbows of the first port of horizontal segment connection dust removal tuber pipe, horizontal segment second port as air supplementing opening. Gather materials to bore to be used for collecting shaking and sieve the sesame -seed slice or the cigarette foam in minus sieve, concentrate through cleaning tube and collect the aftertreatment. The utility model discloses simple structure is convenient for implement, the reliable operation, and low cost, it is easy to draw materials, and the effect is better.