The invention discloses a 
sludge drying treatment device. The 
sludge drying treatment device comprises a 
settling tank, a 
sludge inlet 
pipe, a sludge outlet 
pipe and a 
drying tank, and the sludge drying treatment device comprises a 
settling tank, a drying box, a transferring box and a collection box, wherein the top of one side of the 
settling tank is communicated with the sludge inlet 
pipe, the settling tank is communicated with the drying box by virtue of the sludge outlet pipe communicated with the other side of the settling tank, the drying box is communicated with a conveying box by virtue of a discharging pipe, a compression apparatus is arranged at the junction of the conveying box and the discharging pipe, and the middle-upper side of a material inlet of the conveying box is provided with a 
cutting apparatus. By virtue of the sludge drying treatment device, a great amount of water is removed in a settling and filtering manner by virtue of the settling tank, then the residual water in the sludge is removed in a drying manner by virtue of the drying box, the sludge containing little water is compressed into a columnar shape by virtue of the compression apparatus and then is 
cut into cakes by virtue of the 
cutting apparatus, the residual little water in each 
sludge cake is removed in a drying manner by virtue of a hot 
fan in the conveying process in the conveying box, the sludge drying effect is good, the burning of the sludge is facilitated, the economic benefit is high, and the application and popularization are facilitated.