Furnace pressure controller for fire endurance test furnace

The utility model discloses a furnace pressure controller for a fire endurance test furnace. The furnace pressure controller for the fire endurance test furnace comprises the fire endurance test furnace, a pressure sensor, a proportion integration differentiation (PID) controller, a computer, a multi-hole smoke discharge current stabilizing net, a smoke collecting hood, a smoke discharge air fan, and a smoke discharge channel, wherein the pressure sensor which is arranged inside the fire endurance test furnace is connected with the PID controller and is used for transferring actual furnace pressure data to the PID controller; the computer is connected with the PID controller and is used for transferring target pressure data to the PID controller; the PID controller is used for comparing and analyzing the actual furnace pressure data and the target pressure data, and controlling revolving speed of the smoke discharge air fan based on analysis results; and the smoke collecting hood is arranged above smoke disch