The invention discloses a dry-hang type block forming machine. The machine comprises a frame, a forming mechanism and a material distributing mechanism, wherein the forming mechanism and the materialdistributing mechanism are arranged on the frame; the forming mechanism comprises an upper die fixing frame, an upper die plate, a pressing head at the lower end of the upper die plate, a die frame, alower die plate, a supporting plate, a base plate, a base and lifting mechanisms which are arranged at two sides and are used for driving the die frame to ascend and descend, wherein the upper die fixing frame, the upper die plate, the pressing head, the die frame, the lower die plate, the supporting plate, the base plate, the base and the lifting mechanisms are sequentially arranged in the forming frame from top to bottom; and the material distributing mechanism comprises a material distributing frame, the material distributing frame is provided with a driving chamber and a material distributing chamber through a partition plate, a motor mounting plate is arranged on the driving chamber, a motor is arranged on the motor mounting plate, a plurality of material distributing holes are formed in the material distributing chamber through a plurality of material blocking plates, spiral blades are arranged in the material distributing holes, and the spiral blades are in transmission connection with a driving shaft through driving of the motor. According to the machine, the structure is arranged, so that the compactness of the product is improved, material distributing can be more uniform, the energy consumption of the whole machine can be low, and the block forming efficiency can be improved.