The invention discloses ventilation equipment and a civil air defense
engineering ventilation
system. The ventilation equipment comprises a box body, an air blowing cylinder and an air suction cylinder, wherein the air blowing cylinder and the air suction cylinder are located below the box body and are oppositely arranged; the air blowing cylinder communicates with an air blowing mechanism through a first air
pipe; the air suction cylinder communicates with an air draft mechanism through a second air
pipe; and the air draft mechanism communicates with an external exhaust main
pipe. According to the ventilation equipment and the civil air defense
engineering ventilation
system, the air blowing cylinder and the air suction cylinder are oppositely arranged,
forced convection of air in the space in the civil air defense
engineering is realized, so that the air is sucked through
forced convection, a good exhaust effect is achieved, and the
air exchange effect is improved; and a swing mechanism is arranged, so that the first air pipe and the second air pipe swing, then the air blowing cylinder and the air suction cylinder are driven to swing, a good pumping and discharging effect on the air at different heights in the whole space is achieved, and meanwhile, the fluidity of the air is further improved.