A fume extractor for railway carriage

The utility model provides a fume extractor for railway carriage, the wing section board and the discharge fume pipe of setting on the carriage that are the wing section including the section, the top sets up outside the bottom laminating carriage of wing section board, the vertical through -hole that is provided with on the wing section board, the top butt of managing of discharging fume is in the through -hole bottom, the terminal of pipe of discharging fume sets up in the carriage. This a fume extractor for railway carriage utensil sets up the wing section board through top outside the carriage, and set up on the wing section board intercommunication interior the pipe of discharging fume, make train wing section board in service and air produce relative motion, the wing section board surface pressure diminish, and be greater than the surperficial pressure of wing section board by the pressure in the carriage of tub intercommunication of discharging fume, smog is through discharging fume the pipe by moving