Combined template for paving two mortar layers on Z-shaped concrete hollow block

The utility model relates to a combined template for paving two mortar layers on Z-shaped concrete hollow block, belonging to a bricklaying tool, which is characterized by mainly comprising a reference template, an upper mask plate and a lower mask plate, wherein the reference template is mainly composed of a Z-shaped template frame, an upper and a lower strip mask hole cover plates and a template reinforcing plate; the inner frame edge, and the upper and the lower strip mask hole cover plates of the Z-shaped template frame are corresponding to the outer circumference, the upper and the lower strip holes on the Z-shaped hollow block; the Z-shaped template frame is rotationally mounted with a handle and a mortar groove; the upper frame edge of the reference template is hinged with the upper mask plate of inverted-Z shape whose middle part is provided with an upper paving space; the lower frame edge of the reference template is hinged with a cavity lower mask plate in inverted-Z shape; the middle part of the lo