The invention relates to an angle-type bell valve, which mainly solves the problem that dust at the corner of a valve seat of an existing angle-type bell valve is not liableto clear. The angle-type bell valve is characterized in that the outer side face of an outlet valve body is connected with air inlets; the air inlets communicate with the inner side of a valve body; a baffle plate is connected between the inner wall of the outlet valve body and the lower surface of a valve seat; an air vent is formed in a position, near the inner wall of the outlet valve body, of the valve seat; the air inlets, the baffle plate and the valve seat with the air vent form a unidirectional circulation cavity; and a circulation direction is from the air inlets to the air vent. When being needed to be cleared, the dust at the corner of the valve seat can be cleared without detaching the whole valve as long as the air inlets are connected and high-pressure gas is introduced, which is very convenient.