The utility model discloses a cigarette end column capable of automatically extinguishing residual fire, which relates to the technical field of cigarette end columns, and comprises an outer column body, an upper conical seat is fixed at the upper end of the outer column body, four feeding ports are formed in the lower end of the upper conical seat in an array manner, an
infrared sensor is arranged on the inner side of each feeding port, a
piston plate is arranged on the inner side of the upper conical seat, and an
infrared sensor is arranged on the
piston plate. The inner side of the outer column body is slidably connected with a material collecting inner seat, a bearing frame is slidably connected to the position, located at the lower end of the material collecting inner seat, in the outer column body, exhaust holes are formed in the four end corners of the bottom end of the material collecting inner seat, an exhaust one-way valve is arranged at the position, located at the lower end of the bearing frame, in the outer column body, and a blocking door is arranged at the bottom end of the inner side of the outer column body. According to the
cigarette butt column capable of automatically extinguishing the residual fire, through the overall structural matching design, cigarette butts thrown into the upper conical base can be detected, and therefore the
piston plate can be automatically controlled to move downwards to compress the inner side space of the material collecting inner base,
oxygen is gradually exhausted, and the residual fire can be extinguished conveniently.