Tunnel construction dust collector that discharges fume

The utility model discloses a tunnel construction dust collector that discharges fume, which comprises a bod, the lower extreme middle part of organism upper end fixed connection interfacing part, theoutside middle part of interfacing part is through ball groove slidable mounting ball, the outer interior side middle part that corresponds that corresponds side fixed connection square ring of ball,square ring is through the outside middle part of square annular slidable mounting at the interfacing part, the lower extreme of square ring's upper end fixed connection quadrature tube spare, the inboard inside of sealing leading to the hose in lower part of organism, the solid fixed ring of middle part outside fixed mounting of hose. Through the resilience force of first spring, increased the rotary resistance of quadrature tube spare, guaranteed state that nobody is under quadrature tube spare can not rotate at will, conveniently absorb flue gas to any one orientation with quadrature tubespare is rotatory, rotatory