Whirlwind strong-suction no-clean smoke exhausting mechanism

The invention discloses a whirlwind strong-suction no-clean smoke exhausting mechanism. The whirlwind strong-suction no-clean smoke exhausting mechanism comprises an air collecting mask and an exhausting mechanism, wherein the exhausting mechanism is fixed to the top of the air collecting mask and comprises a first gap and a second gap; an air retaining mechanism is arranged on the air collectingmask; air enters the first gap through a fan connected with the air exhausting mechanism so as to form whirlwind; negative pressure is formed at the center of the whirlwind; oily smoke is carried in the center of the whirlwind and is exhausted with air; a part of clean air overflows via the second gap and flows along the inner wall of the air collecting mask to form an air curtain for isolating the oily smoke, and the oily smoke is prevented from having contact with the inner wall of the air collecting mask; the air of the air curtain is returned to an air sucking opening region through the air retaining mechanism, is