The present invention disclose a mixer with retractable exhaust funnel, including mixing barrel, gas skirt and exhaust funnel set vertically, the gas skirt is arranged on discharge end of the mixing barrel, one end of the exhaust funnel is connected with the gas skirt, another end extends to top of workshop, the exhaust funnel includes retractable section and two fixed sections, one of the fixed section is connected with the retractable section, the other fixed section is connected with the retractable section via connector. The mixer with retractable exhaust funnel is provided with advantagesof keeping the exhaust funnel discharging smoothly, the exhaust funnel is retractable for temporary, providing convenient condition for overhaul vehicle passing in work shop, and being able to stretch and recovering mounting in time, will not affect normal work.