Furnace discharging door for stepping heating furnace

The invention discloses a furnace discharging door for a stepping heating furnace, and relates to the technical field of stepping heating furnaces. The furnace discharging door comprises a furnace wall, a group of lifting components and standby components, wherein a door channel is fixed on the front side surface of the furnace wall, a furnace discharging port is formed in the furnace wall at a position opposite to the door channel, a door body is slidably matched in the door channel, a cover plate is arranged at the top of the door body, inserting plates are fixed on the two sides of the topof the cover plate through reinforcing parts, the lifting components comprise a group of vertical plates, and a group of guide rods are fixed between the group of vertical plates. A mounting base anda cylinder can be driven to slide through the standby air cylinders, so that a fixing block is driven to be separated from the door body, so that the cylinder is deviated from the door body, and the door body can be driven to