Tunnel drying furnace

The utility model discloses a tunnel drying furnace, including frame and drying chamber, the drying chamber sets up in the inboard of frame, sets up the axostylus axostyle in the both ends of frame department the cover is equipped with the driving roller on the axostylus axostyle, two be equipped with the conveyer belt between the driving roller, the surperficial equipartition of conveyer belt hasan air vent, the bottom of drying chamber is passed the conveyer belt the bottom of drying chamber is equipped with a plurality of electric fan heaters, and the air -out end department of electric fan heater is equipped with a wind -guiding passageway, and the wind -guiding passageway upwards extends to in the drying chamber, form parallelly after the upper end bending of wind -guiding passagewaythe horizontal component of conveyer belt sets up the air outlet of downward air -out in this horizontal component department, the bottom equipartition of air outlet has the exhaust vent, first air outlet is connected to the