Smoke exhaust structure

A smoke exhaust structure comprising a housing, a circuit system and a smoke exhaust system, at least one motor being arranged on the housing, the circuit system being connected with the motor and a controller via electric wire, the smoke exhaust system being composed of at least one fan, a wind chamber and at least one oil tank, the smoke exhaust system being an independent passage, the wind chamber communicating with the housing and the circuit system only via at least one through hole which is slightly larger than the motors, permitting the motor to pass therethrough, said smoke exhaust structure being characterized in that the wind chamber of the smoke exhaust system is totally isolated from the circuit system and the housing, whereby a user can easily detach the components of the entire smoke exhaust system for cleaning or replacement so as to fully clean up the oily dirt and ensure good smoke exhausting function of the smoke exhaust structure.