Fecha de publicación: 24/11/2017 Fuente: WIPO "tobacco agriculture" The utility model discloses a can avoid down roast room of environmental protection flue -cured tobacco of cigarette, including roast room body, reducing pipe, first draught fan, connecting pipe, desulfurization dust collector, blast pipe, second draught fan, smoke transducer, alarm, controller, roast room body include the heating chamber, hang the smoke -box, the union coupling of discharging fume of heating chamber have the venturi tube of falling L, the microcephaly of the venturi tube of falling L and reducing pipe be connected, the major part of reducing pipe be connected with the connecting pipe, first draught fan set up in the major part of reducing pipe, the connecting pipe be connected with desulfurization dust collector's the mouth that advances, the blast pipe be connected with desulfurization dust collector's gas vent, the second draught fan set up in the blast pipe, smoke transducer set up in this internal hot air inlet of roast room, the alarm set up on the door of hanging the smoke -box, the controller be connected with first draught fan, second draught fan, smoke transducer, alarm electricity respectively.