Exhaust device, engine, power assembly and automobile

The utility model provides an exhaust device. The exhaust device comprises an exhaust mechanism, a particle trapping part and a bent pipe part, the exhaust mechanism at least comprises a turbocharging part and a three-way catalytic part, one end of the three-way catalytic part is connected with the turbocharging part, and the other end of the three-way catalytic part is connected with the particle trapping part; through the arrangement of the bent pipe part, the bent pipe part is arranged between the turbocharging part and the three-way catalytic part, so that the three-way catalytic part and the turbocharging part form a specified angle; or, the bent pipe part is arranged between the three-way catalytic part and the particle trapping part, so that the particle trapping part and the turbocharging part form a specified angle; through the arrangement of the bent pipe part, the space position between the turbocharging part and the particle trapping part can be changed, so that the particle trapping part is arranged on the lower side of the turbocharging part, the arrangement direction of the particle trapping part and the exhaust mechanism is changed, and the space utilization rate is increased.