The invention discloses a fire scene 
smoke eliminator capable of effectively eliminating dense 
smoke generated in a fire scene and a 
smoke eliminating 
system capable of providing a large amount of 
fresh air for an escaping people. The fire scene smoke eliminator comprises a smoke sensing switch (1), a battery high-
voltage direct-current power supply (2), a smoke suction fan (5), a square-type smoke eliminating chamber (6) and a 
pipe-type smoke eliminating chamber (7), wherein the square-type smoke eliminating chamber (6) is internally provided with at least one layer of cross 
corona wire net (8); the 
pipe-type smoke eliminating chamber (7) is internally provided with a cross 
corona wire net (9); the cross 
corona wire net (8) and the cross corona wire net (9) are both communicated with thenegative pole of the battery high-
voltage direct-current power supply (2); and the upper and the lower 
metal sheets of the square-type smoke eliminating chamber (6) and the 
pipe wall of the pipe-typesmoke eliminating chamber (7) are communicated with the positive pole of the battery high-
voltage direct-current power supply (2). The smoke eliminating 
system also comprises a large-power exhaust fan. The smoke eliminator and smoke eliminating 
system provided by the invention can be widely applied to the field of fire scene smoke 
elimination.