An engine exhaust device comprising: a first catalyst provided in an exhaust path of the engine to purify exhaust gas discharged from the engine; a second catalyst placed downstream of the first catalyst in a flow of the exhaust gas to purify the exhaust gas which has passed through the first catalyst; and a connecting member shaped into a tube and forming a part of the exhaust path, and connecting the first catalyst to the second catalyst, wherein a downstream end surface of the first catalyst and an upstream end surface of the second catalyst form a dihedral angle (α) within a range from 60 degrees to 120 degrees, a part of the upstream end surface of the second catalyst is close to and faces a part of a side surface of the first catalyst, on a cross-section including a central axis of the first catalyst and being parallel to a central axis of the second catalyst, a length of the part of the side surface of the first catalyst is longer than or equal to 10% and shorter than 50% of an entire length of the first catalyst, the connecting member includes: a first opening located upstream in the flow of the exhaust gas; a second opening located downstream in the flow of the exhaust gas; and a bend connecting the first opening to the second opening, the first catalyst is inserted in a downstream end surface of the first catalyst first into the connecting member through the first opening, the second catalyst is inserted in an upstream end surface of the second catalyst first into the connecting member through the second opening, and the bend of the connecting member includes: a first wall facing the downstream end surface of the first catalyst; and a second wall smoothly connected to the first wall and facing the upstream end surface of the second catalyst, characterized in that the central axis of the first catalyst is shifted downward from the plane, which includes the central axis of the second catalyst and is parallel to the central axis of the first catalyst, and the first wall includes: a wall transition smoothly extending from the second opening; a wall slope smoothly connected to the wall transition, and rising up toward the first catalyst; and a wall step smoothly connected to the wall slope and the second wall. a first catalyst provided in an exhaust path of the engine to purify exhaust gas discharged from the engine; a second catalyst placed downstream of the first catalyst in a flow of the exhaust gas to purify the exhaust gas which has passed through the first catalyst; and a connecting member shaped into a tube and forming a part of the exhaust path, and connecting the first catalyst to the second catalyst, wherein a downstream end surface of the first catalyst and an upstream end surface of the second catalyst form a dihedral angle (α) within a range from 60 degrees to 120 degrees, a part of the upstream end surface of the second catalyst is close to and faces a part of a side surface of the first catalyst, on a cross-section including a central axis of the first catalyst and being parallel to a central axis of the second catalyst, a length of the part of the side surface of the first catalyst is longer than or equal to 10% and shorter than 50% of an entire length of the first catalyst, the connecting member includes: a first opening located upstream in the flow of the exhaust gas; a second opening located downstream in the flow of the exhaust gas; and a bend connecting the first opening to the second opening, a first opening located upstream in the flow of the exhaust gas; a second opening located downstream in the flow of the exhaust gas; and a bend connecting the first opening to the second opening, the first catalyst is inserted in a downstream end surface of the first catalyst first into the connecting member through the first opening, the second catalyst is inserted in an upstream end surface of the second catalyst first into the connecting member through the second opening, and the bend of the connecting member includes: a first wall facing the downstream end surface of the first catalyst; and a second wall smoothly connected to the first wall and facing the upstream end surface of the second catalyst, a first wall facing the downstream end surface of the first catalyst; and a second wall smoothly connected to the first wall and facing the upstream end surface of the second catalyst, characterized in that the central axis of the first catalyst is shifted downward from the plane, which includes the central axis of the second catalyst and is parallel to the central axis of the first catalyst, and the first wall includes: a wall transition smoothly extending from the second opening; a wall slope smoothly connected to the wall transition, and rising up toward the first catalyst; and a wall step smoothly connected to the wall slope and the second wall. a wall transition smoothly extending from the second opening; a wall slope smoothly connected to the wall transition, and rising up toward the first catalyst; and a wall step smoothly connected to the wall slope and the second wall.