Anti-leakage flow guide fastener at connecting position of metal pitched roof gutter

The utility model discloses an anti-leakage flow guide fastener at the connecting position of a metal pitched roof gutter, and relates to the technical field of metal roofs, the anti-leakage flow guide fastener comprises a first fixing part and a second fixing part; the second fixing piece is buckled on the first fixing piece, and the first fixing piece is connected to the outer side of the upper end of the gutter; the first fixing piece and the second fixing piece are connected with one end of the first metal roof panel, and the first metal roof panel is close to the upper end of the gutter. A bent edge is arranged at the position, connected with the first fixing piece and the second fixing piece, of the first metal roof board, is perpendicular to the bottom face of the gutter, and is connected with the first fixing piece and the second fixing piece. The sealing performance is enhanced when the metal roof panel close to the gutter is connected with the side wall of the gutter, rainwater is prevented from per