An ash reclaiming device for valve tower ash-removing tools is provided. The device includes a telescoping bar and an ash treatment device. One end of the telescoping bar is mounted with an ash absorbing device. The ash absorbing device includes an ash reclaiming cover that is an inverted hemispheric shell. The upper part of the ash absorbing device is hinged with the telescoping bar. Two sides of the ash absorbing cover are mounted with an electrical pushing bar and a spring respectively. A plurality of distance measuring sensors are mounted at the lower part of the ash absorbing cover, can sense distances between different positions at the lower part of the ash absorbing cover and a valve tower, convert distance signals into electric signals, and transmit the electric signals to a controller. The controller controls the electric pushing bar to extend or shrink according to the electric signals so as to allow distances between the distance measuring sensors and the valve tower to be same.