Mortar spraying pipe capable of regulating spraying angle

The utility model discloses a mortar spraying pipe capable of regulating a spraying angle. The mortar spraying pipe comprises an outer sleeve, wherein a strip-shaped cutting mouth for spraying mortar is formed in a pipe wall of the outer sleeve; and a baffle plate for spraying and guiding the mortar is arranged on the outer sleeve. The mortar spraying pipe also comprises a rotating ring, wherein the rotating ring and the sleeve form rotatable sleeved matching; the baffle plate is fixed on the rotating ring, is arranged along the length direction of the cutting mouth and is hinged with the outer sleeve by virtue of the rotating ring. By rotating the rotating ring, the baffle plate is driven to rotate, so that a spraying feeding guide angle of the baffle plate against the mortar is regulated. According to the mortar spraying pipe, the spraying feeding angle of the mortar can be regulated, so that the heat radiation effect of monocrystalline silicon during cutting is improved.