Smoke ventilator system and supplementary fume extraction device thereof

The utility model provides a modified smoke ventilator system and supplementary fume extraction device thereof. The supplementary fume extraction device that this application provided, including centrifugal fan and linking body spare (3), centrifugal fan includes spiral case (1) and multi -axis robot centrifugation impeller (2), the one end that links up body spare (3) links up the intercommunication the air intake of spiral case (1), the other end that links up body spare (3) is suitable for and links up the intercommunication no. 1 tub air outlet of (7) of discharging fume, be provided within the linking body spare (3) and be suitable for the steering current flow direction the wind guide of multi -axis robot centrifugation impeller (2). Adopt the technical scheme of this application, help making the flow of air current more smooth and easy. 本申请提出种改进的抽油烟机系统及其辅助排油烟装置。本申请提出的辅助排油烟装置，包括离心式风机和衔接管体件(3)，所述离心式风机包括蜗壳(1)和多翼式离心叶轮(2)；所述衔接管体件(3)的端衔接连通所述蜗壳(1)的进风口，所述衔接管体件(3)的另端适于衔接连通排烟管(7)的出风口；所述衔接管体件(3)内设置有适于引导气流流向所述多翼式离