sewage suction truck and coal cinder suction device thereof

The invention discloses a sewage suction truck and a coal cinder suction device thereof. The coal cinder suction device is applied to a railway tunnel, and the coal cinder suction device comprises a transverse telescopic mechanism, a longitudinal telescopic mechanism and a sewage suction mechanism; the transverse telescopic mechanism is used for being arranged on a sewage suction vehicle body capable of running along a railway track. The longitudinal telescopic mechanism is connected to the movable end of the transverse telescopic mechanism; the movable end of the longitudinal telescopic mechanism faces downwards, and the dirt suction mechanism is connected to the movable end of the longitudinal telescopic mechanism. According to the scheme, firstly, the coal cinder suction and removal device is driven to move along the railway track through running of the dirt suction vehicle body, and then the dirt suction mechanism can conduct long-distance operation through cooperation of the transverse telescopic mechani